Toyota - Add Amplifier to Factory Radio - Bypass OEM Amplifier - Add an Amplifier interface
Bypassing the factory amplifier is a more difficult undertaking but provides the best sound quality gain. When bypassing, it takes a more work because you have to run the bypass harness to the factory amplifier, which is often located in some other part of the car. Bypassing the factory amplifier will require an aftermarket amplifier or using the aftermarket radio's internal amplifier.
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Axxess AX-DSP-TY3 AX-DSP Plug-and-Play T-Harness for 2018 - 2019 Toyota vehicles - Amplified$53.99
- Fits 2018 - 2019 Toyota vehicles with Amplified audio systems Learn More
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Axxess AX-DSP-TY1 AX-DSP Plug-and-Play T-Harness for 2003 - and Up Toyota vehicles$53.99
- Fits 2003 - and Up Toyota vehicles with factory audio systems
- T-harness is a simple plug-n-play harness for easy installation of the AX-DSP
- Provides (4) Channel Speaker leads to utilize factory speaker wires with an aftermarket amplifier
- Provides Line-level RCA outputs from factory headunit with AX-DSP
- AX-DSP (Sold separately) provides equalization, time alignment, high and low pass crossovers
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PAC LPHTY02 2019 - and Up select Toyota LocPro Advanced T-harness for vehicles with non-amplified sound systems$56.99
- Designed for 2019 - and Up select Toyota vehicles
- Provides plug-n-play audio output connections from the factory radio without cutting factory speaker wires
- Easily add amplifier to an existing audio system and use the factory radio without cutting factory wiring
- Saves time by quickly utilizing the original speaker wires
- Plug and Play installation
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PAC LPHTY01 1985 - and Up select Toyota LocPro Advanced T-harness for vehicles with non-amplified sound systems$66.99
- Designed for 1985 - and Up select Lexus / Scion / Subaru / Toyota vehicles
- Provides plug-n-play audio output connections from the factory radio without cutting factory speaker wires
- Easily add amplifier to an existing audio system and use the factory radio without cutting factory wiring
- Saves time by quickly utilizing the original speaker wires
- Plug and Play installation