Best OEM Stereo Line Output Converters

What are the best OEM stereo line output converters for upgrading your car’s audio system?
These devices transform speaker signals into RCA outputs, enabling you to add amplifiers or subwoofers to enhance sound quality while maintaining your existing factory stereo.

Upgrading your car audio doesn’t mean replacing your factory stereo. With the best OEM stereo line output converters, you can add amplifiers or subwoofers easily. These devices turn speaker signals into RCA outputs, giving you clear, powerful sound without hassle.

Whether you want deeper bass or crisper highs, these converters work with your existing system. They’re compact, easy to install, and compatible with most cars. You’ll enjoy better sound quality and a seamless upgrade in no time.

Boost your audio, enhance your drive, and feel the difference. Let’s explore the top options to transform your car’s sound system.

List of Top 10 OEM Stereo Line Output Converters

Title	Best For	Price
Kicker 46KISLOC2 K-Series Stereo Line-Output Converter w/Remote Turn-On Output	Perfect for drivers who want more power for their sound system. You can add an amplifier to any factory radio with simple DIY installation. Enjoy louder music with better sound clarity.	View on Amazon (paid link)
Scosche LOC2SL Line Output Converter with Remote Control Knob – 2CH High/Low RCA Converter Car Audio – Ideal for Subwoofer Amp – Line Level Converter for Car Stereo – Easy Installation – Quality Sound	The Scosche LOC2SL Line Output Converter is perfect for car audio enthusiasts who want to upgrade their sound system without complex rewiring. It’s ideal for anyone looking to add a subwoofer or boost their car’s audio performance with clear, powerful sound.	View on Amazon (paid link)
NuIth Car Audio Speaker Wire to RCA Line Output Converter, 2-Channel High to Low RCA Converter for Adding Amplifier Subwoofer to Stock Stereo	This product is perfect for car owners who want to upgrade their sound system by adding an amplifier or subwoofer to their stock stereo. It’s easy to install and improves sound quality without hassle.	View on Amazon (paid link)
46KISLOC2 K‑Series Stereo Line‑Output Converter w/Remote Turn‑On Output – Replacement for Kicker 46KISLOC2, Fits KISLOC2 Setups	This is perfect for car audio upgrades with a KISLOC2 setup. It sends sound from a factory radio to an amp or powered sub.	View on Amazon (paid link)
PAC LP7-2 L.O.C. PRO Series 2-Channel Line Output Converter with Remote Turn On 4in. x 8in. x 1in.	This PAC LP7-2 L.O.C. PRO Series is perfect for anyone adding an amplifier to their car audio system. It’s ideal for improving sound quality and works great with factory radios.	View on Amazon (paid link)
Recoil MLOC2 2-Channel Micro Line Output Converter Remote Turn On Trigger	The Recoil MLOC2 is perfect for anyone adding an amplifier to a factory radio. It’s super compact and easy to install, making it ideal for car audio upgrades.	View on Amazon (paid link)
Scosche LOC80 Line Output Converter – 2 Channel High/Low RCA Converter Car Audio – Ideal for Subwoofer Amp – Line Level Converter for Car Stereo Amplifier – Easy Installation – Quality Sound	Drivers who want great sound without hard work will love this versatile tool. It fits tight spaces and links your radio to a subwoofer with ease.	View on Amazon (paid link)
AudioControl LC1i 2-Channel Car Audio Line Output Converter & Line Driver	This product is perfect for car owners who want to upgrade their sound system. You can keep your factory stereo and still add better speakers or a subwoofer. The line output converter makes this easy. It works with new cars too. Use the load selection switches to match your car’s setup. You can adjust bass from your driver’s seat with a remote knob. Get clear, loud sound without extra noise.	View on Amazon (paid link)
Car Audio High to Low Converter 2 Channel Stereo Speaker Wire to Output Adapter for Factory Car Stereo Amplifier and Subwoofer Installation	This Car Audio High to Low Converter is perfect for anyone who wants to upgrade their car stereo with an amplifier or subwoofer without cutting factory wires. It’s easy to install and works with most factory stereos, so you can enjoy clear, powerful sound without losing original features.	View on Amazon (paid link)
CT Sounds CT-LC2 2-Channel Premium Line-Out Converter with BassLift	The CT Sounds CT-LC2 is perfect for anyone who wants to upgrade their car audio with clear, powerful sound. It’s great for music lovers who want deeper bass and better clarity without replacing their factory system.	View on Amazon (paid link)

Detailed Reviews

We picked the very best converters for this list. Our experts checked every detail so you can find a solid match. You will learn how to get great sound for your car. Read ahead to discover the perfect gear for your upgrade.

1. Kicker 46KISLOC2 K-Series Stereo Line-Output Converter w/Remote Turn-On Output

The Kicker 46KISLOC2 lets you add an amplifier to almost any radio. It delivers clear, powerful sound at any volume.

It uses your factory speaker wires to work. It turns the signal into RCA and remote outputs. It handles up to 55 watts of input.

Enjoy sparkling highs and thunderous lows. The DC offset feature ensures reliable performance. Upgrade your audio effortlessly.

Pros	Cons
Upgrade any radio with easy amplifier addition. Enjoy clear highs and deep lows at any volume. Simple install using factory speaker wires. Handles up to 55 watts of input power.	Limited to 55 watts, may not suit high-power systems. Requires speaker wire setup, not plug-and-play. No wireless options like Bluetooth for easy connectivity.

Perfect For:

Perfect for drivers who want more power for their sound system. You can add an amplifier to any factory radio with simple DIY installation. Enjoy louder music with better sound clarity.

Ready to Purchase?

View Price on Amazon (paid link)

2. Scosche LOC2SL Line Output Converter with Remote Control Knob – 2CH High/Low RCA Converter Car Audio – Ideal for Subwoofer Amp – Line Level Converter for Car Stereo – Easy Installation – Quality Sound

Scosche LOC2SL Line Output Converter with Remote Control Knob - 2CH High/Low RCA Converter Car Audio - Ideal for Subwoofer Amp - Line Level Converter for Car Stereo - Easy Installation - Quality Sound

This Line Output Converter lets you connect your factory radio to a new subwoofer amp. It makes your car sound better with clear sound and good bass.

The LOC2SL is small and strong, fitting in tight car spots easily. It gives your car good sound quality with low noise and smooth music. You will love how it works and how it lasts long.

This converter is easy to set up and works with many car audio systems. It takes speaker signal and turns it into line level signal for strong performance. Get your high sound and deep bass with simple steps.

Pros	Cons
Versatile fit for any car audio system, easy install. Seamless upgrade, no sound loss, simple wiring. Crisp, clear sound for subwoofers, audiophile approved. Compact, durable design, fits tight spaces, lasts long. Clean, powerful audio, minimizes interference, maximizes quality.	No wireless option, needs wired connection for setup. Remote control knob may feel basic for some users. Compact size limits advanced features or customization.

Perfect For:

The Scosche LOC2SL Line Output Converter is perfect for car audio enthusiasts who want to upgrade their sound system without complex rewiring. It’s ideal for anyone looking to add a subwoofer or boost their car’s audio performance with clear, powerful sound.

Ready to Purchase?

View Price on Amazon (paid link)

3. NuIth Car Audio Speaker Wire to RCA Line Output Converter, 2-Channel High to Low RCA Converter for Adding Amplifier Subwoofer to Stock Stereo

The NuIth Car Audio Speaker Wire to RCA Line Output Converter lets you add an amplifier or subwoofer to your car’s stock stereo. It works with factory or aftermarket systems. This adapter makes it easy to upgrade your sound.

It converts high-voltage signals to low-voltage RCA outputs. This improves sound quality and clarity. The level gain adjustment lets you control bass on the go.

Installation is simple and quick. Just tap into your speaker wires and connect. Enjoy clean, excellent sound with a neat and reliable power plug.

Pros	Cons
Add amps or subwoofers to your car stereo easily. Converts high to low signals for better sound. Adjust bass on the go without stopping. Simple install, taps into speaker wires directly. Clean, stable power for great audio.	Sound quality may vary slightly May create unwanted background static Needs some technical know-how

Perfect For:

This product is perfect for car owners who want to upgrade their sound system by adding an amplifier or subwoofer to their stock stereo. It’s easy to install and improves sound quality without hassle.

Ready to Purchase?

View Price on Amazon (paid link)

4. 46KISLOC2 K‑Series Stereo Line‑Output Converter w/Remote Turn‑On Output – Replacement for Kicker 46KISLOC2, Fits KISLOC2 Setups

Upgrade your car audio with this easy adapter. It connects your factory radio to new external amplifiers.

This unit accepts strong speaker inputs safely. It sends a clean, flat signal to your low-level RCA outputs. Your sound system plays loud and clear.

The box holds the converter but usually needs extra wiring. Change it easily if issues happen. Enjoy comprehensive support with six months of free returns.

Pros	Cons
Perfect for any vehicle upgrade Delivers clean sound across all music Easy plug-and-play setup for your amp Handles strong signals with ease Get fast help with a warranty	No RCA cables included, so you’ll need to buy them separately. Converter only in the package, missing screws and wiring harness. Six-month warranty is shorter than some competitors’ longer coverage.

Perfect For:

This is perfect for car audio upgrades with a KISLOC2 setup. It sends sound from a factory radio to an amp or powered sub.

Ready to Purchase?

View Price on Amazon (paid link)

5. PAC LP7-2 L.O.C. PRO Series 2-Channel Line Output Converter with Remote Turn On 4in. x 8in. x 1in.

The PAC LP7-2 L.O.C. PRO Series is a 2-channel line output converter designed to enhance your audio experience. It optimizes audio levels between your radio and amplifier, ensuring the best sound quality.

This device is perfect for upgrading OEM systems with an amplifier. It’s configurable for speaker or RCA level input/output, making it versatile and easy to use.

Simple to adjust, precision matched stereo, and compact size (4in. x 8in. x 1in.) make it a great addition to any audio setup.

Pros	Cons
Enhances audio quality between radio and amplifier for clear sound. Versatile use with OEM systems and added amplifiers. Configurable inputs/outputs for speaker or RCA levels. Precision gain adjustment with a single dial for easy control.	No built-in amplifier, requires external amp for full functionality. Single dial adjustment may limit precise tuning for some users. Compact size might make installation tricky in tight spaces.

Perfect For:

This PAC LP7-2 L.O.C. PRO Series is perfect for anyone adding an amplifier to their car audio system. It’s ideal for improving sound quality and works great with factory radios.

Ready to Purchase?

View Price on Amazon (paid link)

6. Recoil MLOC2 2-Channel Micro Line Output Converter Remote Turn On Trigger

The Recoil MLOC2 turns a car radio’s speaker wire into an RCA input for an amp. The tiny two-channel box is easy to set up.

It handles 80 watts and gives up to 10 volts of clear sound. The remote wire sends 12-volt power to start the amp. The LED shows when the amp is on.

Pros	Cons
Tiny size, huge sound upgrade for your car audio. Converts speaker signals to RCA for easy amp connection. Clear audio with oxygen-free copper speaker wire. Remote turn-on feature with LED indicator included. Compact design for quick and easy installation.	No built-in bluetooth or wireless options. Requires extra wiring for installation. Limited to 2-channel output only.

Perfect For:

The Recoil MLOC2 is perfect for anyone adding an amplifier to a factory radio. It’s super compact and easy to install, making it ideal for car audio upgrades.

Ready to Purchase?

View Price on Amazon (paid link)

7. Scosche LOC80 Line Output Converter – 2 Channel High/Low RCA Converter Car Audio – Ideal for Subwoofer Amp – Line Level Converter for Car Stereo Amplifier – Easy Installation – Quality Sound

Scosche LOC80 Line Output Converter - 2 Channel High/Low RCA Converter Car Audio - Ideal for Subwoofer Amp - Line Level Converter for Car Stereo Amplifier - Easy Installation - Quality Sound

The Scosche LOC80 Line Output Converter is a must-have for upgrading your car audio. It easily connects your factory stereo to an aftermarket amplifier, ensuring no sound quality loss.

This compact and durable device fits tight spaces and delivers crisp, clear sound. It’s perfect for subwoofers and audiophiles seeking high-fidelity audio.

Trusted brand, lifetime support, simple installation. The Scosche LOC80 is your go-to for better car audio.

Pros	Cons
Universal Fit for Car Audio Systems Easy Installation with No Rewiring Crystal Clear Sound Quality Compact and Durable Design Lifetime Tech Support Included	Installation can be hard for beginners. No built-in crossover for tuning. Wiring must be done correctly to stop noise.

Perfect For:

Drivers who want great sound without hard work will love this versatile tool. It fits tight spaces and links your radio to a subwoofer with ease.

Ready to Purchase?

View Price on Amazon (paid link)

8. AudioControl LC1i 2-Channel Car Audio Line Output Converter & Line Driver

Upgrade your factory stereo with ease. Convert high power signals to clear audio. It connects to aftermarket amplifiers.

Boost weak factory radio signals effectively. The unit removes annoying engine whine. It saves space in your car.

Control bass levels using the remote. The device is small and slim.

Pros	Cons
Boosts weak factory signals Works with modern cars Eliminates ground noise Adds convenient remote control Saves space in your car	No built-in remote control for subwoofer level adjustment. Separate purchase needed for ACR-1 remote kit. Compact size might be challenging for tight spaces.

Perfect For:

This product is perfect for car owners who want to upgrade their sound system. You can keep your factory stereo and still add better speakers or a subwoofer. The line output converter makes this easy.

It works with new cars too. Use the load selection switches to match your car’s setup.

You can adjust bass from your driver’s seat with a remote knob.

Get clear, loud sound without extra noise.

Ready to Purchase?

View Price on Amazon (paid link)

9. Car Audio High to Low Converter 2 Channel Stereo Speaker Wire to Output Adapter for Factory Car Stereo Amplifier and Subwoofer Installation

Upgrade your car audio easily with this high-to-low converter. It turns speaker wire signals into low-level outputs for amps and subs. No need to cut factory wires.

Enjoy clear, static-free sound with less interference. Say goodbye to hum or buzz while driving. Perfect for a smooth music experience.

Works with most factory stereos and fits in tight spaces. Add powerful bass without replacing your radio. Simple setup, no special tools needed.

Pros	Cons
Easy Setup: Connect without cutting factory wiring Clean Sound: Static-free audio with no hum or buzz Universal Fit: Works with most factory car stereos Keep Factory System: Add bass without replacing original radio Quick Install: Fits in tight spaces with no special tools	No volume control limits sound adjustment options. Basic design lacks advanced features like filters. Single purpose restricts use to specific car setups.

Perfect For:

This Car Audio High to Low Converter is perfect for anyone who wants to upgrade their car stereo with an amplifier or subwoofer without cutting factory wires. It’s easy to install and works with most factory stereos, so you can enjoy clear, powerful sound without losing original features.

Ready to Purchase?

View Price on Amazon (paid link)

10. CT Sounds CT-LC2 2-Channel Premium Line-Out Converter with BassLift

The CT Sounds CT-LC2 is a 2-channel line-out converter with BassLift technology. It enhances your car audio by improving bass and sound quality.

It has two outputs: one for main speakers and one for subwoofers. The BassLift feature fixes factory bass roll-off, giving deeper, richer sound.

It converts high-level signals to low-level RCA inputs. A 34-page manual with step-by-step instructions makes installation easy.

Pros	Cons
BassLift tech boosts your factory bass for a richer sound. Converts high-level signals to RCA inputs easily. Full-range and low-pass outputs for speakers and subwoofers. Step-by-step manual makes installation a breeze.	No built-in amplifier — needs extra gear for full power Basic 2-channel setup — limited for complex systems Manual only — no digital display or auto-adjust features

Perfect For:

The CT Sounds CT-LC2 is perfect for anyone who wants to upgrade their car audio with clear, powerful sound. It’s great for music lovers who want deeper bass and better clarity without replacing their factory system.

Ready to Purchase?

View Price on Amazon (paid link)

Buying Guide

Upgrade your car audio without replacing your factory stereo. OEM stereo line output converters make it easy to add amplifiers or subwoofers for clear, powerful sound.

Factors to Consider When Buying:
– Compatibility: Ensure the converter works with your car’s factory stereo and audio system. Check for universal fit or specific model compatibility.
– Installation: Look for easy-to-install options with clear instructions. Compact designs fit tight spaces better.
– Sound Quality: Choose converters that deliver low noise and clear audio. Features like DC offset or BassLift enhance performance.
– Power Handling: Match the converter’s input power (e.g., 55 watts, 80 watts) to your system’s output for reliable performance.
– Outputs: Opt for converters with RCA outputs and remote turn-on for seamless amplifier integration.
– Durability: Select sturdy, long-lasting devices from trusted brands like Kicker, Scosche, or PAC.
– Adjustability: Features like level gain adjustment let you fine-tune bass and sound on the go.
– Warranty: Look for products with warranties or free returns for added peace of mind.

Enjoy a seamless upgrade and feel the difference in your car’s sound system. Choose the best converter to boost your audio and enhance your drive.