Bosebypassfactoryamp

[WoodaWelder79]

Can someone please help me out? I have 2005 LT Tahoe with Bose system. I been trying to install aftermarket sub and amp. Already installed steering wheel control interface and touchscreen radio. Cannot get signal or figure out how to connect what wires to harness from bose amp to get signal to aftermarket amp and speakers.

 

[Doubeleive]

if you are using a amp and sub then you should get the signal from the radio output not the bose amp output, the gm upfitter guide should have the wire colors notated

 

[Joseph Garcia]

^^x2^^

Depending on what head unit you purchased, you may also have a pre-amp subwoofer out jack on it.