Get More from Your Truck’s Audio System Today
Upgrade safely and easily with our plug-in amp adapters — no cutting wires, no hassle. Start your install now and enjoy powerful, clean audio on the road.
Upgrade safely and easily with our plug-in amp adapters — no cutting wires, no hassle. Start your install now and enjoy powerful, clean audio on the road.
866.424.0575
Add an Amp to Your Semi Truck Radio — No Wire Cutting Needed
Upgrading your semi truck audio system has never been easier. With our plug-and-play amp adapter harness, you can add a powerful aftermarket amplifier to your factory radio without cutting or altering any original wiring.
Whether you drive a Freightliner, Peterbilt, Volvo, Kenworth, Mack, International, Western Star, or Sterling, this solution gives you a clean and simple way to expand your sound system.
Upgrading your semi truck audio system has never been easier. With our plug-and-play amp adapter harness, you can add a powerful aftermarket amplifier to your factory radio without cutting or altering any original wiring.
Whether you drive a Freightliner, Peterbilt, Volvo, Kenworth, Mack, International, Western Star, or Sterling, this solution gives you a clean and simple way to expand your sound system.
Why Choose Our Add-an-Amp Adapter
✔ No Wire Cutting or Splicing
✔ Built-In Remote Turn-On Lead
Unlike other adapters, this harness includes a 12V remote trigger wire to automatically power
your aftermarket amp with the radio. Simple routing and reliable amp activation every time.
✔ Works with Most OEM Smart Radios
Designed to fit radios with the BT ISO DIN connector (common on trucks from 2006 and newer). Our harness maintains full speaker functionality while adding pre-amp outputs for your amp and subwoofer.
✔ No Wire Cutting or Splicing
✔ Built-In Remote Turn-On Lead
Unlike other adapters, this harness includes a 12V remote trigger wire to automatically power
your aftermarket amp with the radio. Simple routing and reliable amp activation every time.
✔ Works with Most OEM Smart Radios
Designed to fit radios with the BT ISO DIN connector (common on trucks from 2006 and newer). Our harness maintains full speaker functionality while adding pre-amp outputs for your amp and subwoofer.
COST $95.00
BT ADD AMP-1
BT ADD AMP-1
How It Works
1. Unplug the OEM radio harness from the back of your factory stereo.
2. Plug in our Add-an-Amp harness between the radio and the truck harness.
3. Route the factory RCA outputs and trigger wire to your amplifier location.
4. Connect your amp to the battery and speakers.
5. Enjoy improved sound quality and added power.
This adapter converts the factory speaker leads into low-level RCA outputs, perfect for driving aftermarket amplifiers and subwoofers without complicated wiring or extra line converters.
1. Unplug the OEM radio harness from the back of your factory stereo.
2. Plug in our Add-an-Amp harness between the radio and the truck harness.
3. Route the factory RCA outputs and trigger wire to your amplifier location.
4. Connect your amp to the battery and speakers.
5. Enjoy improved sound quality and added power.
This adapter converts the factory speaker leads into low-level RCA outputs, perfect for driving aftermarket amplifiers and subwoofers without complicated wiring or extra line converters.
COST $95.00
BT ADD AMP-2
BT ADD AMP-2
COST $130.00
BT ADD AMP-3
BT ADD AMP-3
Available Configurations
Adapter Model Channels Best For
BT ADD AMP-1 2 Channels Rear sub or 2-channel amp setup
BT ADD AMP-2 2 Channels Front amp systems
BT ADD AMP-3 4 Channels Full range system or 4-channel amp
Adapter Model Channels Best For
BT ADD AMP-1 2 Channels Rear sub or 2-channel amp setup
BT ADD AMP-2 2 Channels Front amp systems
BT ADD AMP-3 4 Channels Full range system or 4-channel amp
Each version keeps your factory speakers working unless intentionally disconnected.
Still Unsure? We’re Here to Help
Not sure which adapter your truck needs? Our team can help identify the correct harness based on your truck make, model, and year.
📞 Call us at 866-424-0575 or use our Ask a Question page.
Not sure which adapter your truck needs? Our team can help identify the correct harness based on your truck make, model, and year.
📞 Call us at 866-424-0575 or use our Ask a Question page.
Related Upgrades Worth Considering
1. Semi truck speakers for deeper bass and clearer sound
2. Aftermarket radios with Bluetooth and USB audio
3. Satellite radio tuner adapters for SiriusXM integration
1. Semi truck speakers for deeper bass and clearer sound
2. Aftermarket radios with Bluetooth and USB audio
3. Satellite radio tuner adapters for SiriusXM integration
Available Configurations
Adapter Model
BT ADD AMP-1
2 Channels
Rear sub or 2-channel amp setup
BT ADD AMP-2
2 Channels
Front amp systems
BT ADD AMP-3
4 Channels
Full range system or 4-channel amp
Adapter Model
BT ADD AMP-1
2 Channels
Rear sub or 2-channel amp setup
BT ADD AMP-2
2 Channels
Front amp systems
BT ADD AMP-3
4 Channels
Full range system or 4-channel amp