I swapped out the factory Bose head unit in my 03 Envoy. Now I’ve got a weird problem. If I try to fade to the rear speakers, there’s no sound from the front or rear. But if the fade is set to the front or balanced, all the speakers work.
I’m planning to replace the speakers and add an amp soon, but I don’t want to run into bigger issues because of this. Any idea what’s going on?
Ripley said:
What kind of smart harness are you using? Do you know the brand and model?
It’s a Crux CS GMC-2.
I looked it up, and it seems Crutchfield mentions this about the interface:
Important Note: The GM Bose Y-91 premium system doesn’t let you keep fader control with this interface.
This could be a limitation of the factory amp or the interface itself. If you replace the factory amp and run RCAs directly from your head unit to an aftermarket amp, you shouldn’t have this issue.