2004 1500 Silverado radio issues

[Michael Parker]

I've got a 2004 silverado 1500 Z71, it has an aftermarket kenwood headunit with rockford fosgate speakers and 2 12" subs. Im having issues with the regular speakers cutting out randomly but the headunit stays powered on and the subs still play music. If i hit the steering wheel the music will come back and then cut off again, every time the sub stays playing music but the door speakers play nothing and the headunit still works fine, anyone have ideas of what it may be?

[sefiroxx]

Was it a bose system originally?
Does it have steering wheel music control?
Who did the upgrade, pro or self/prior owner?

Have you chased all the wires and the grounds points?

[Michael Parker]

it was the bose system and had steering wheel controls but not anymore. the prior owner did put an aftermarket stereo in but it was a crappy walmart one so i replaced it with a kenwood head unit and my issues started about two weeks after installing the new head unit, i am working on tracing wires currently. I have figured out that when the truck is not running the music will only cut on when i bump the steering wheel but it will turn off with just about any random vibration or bump

[sefiroxx]

Make sure you have the aftermarket interface modules installed for the bose and steering wheel systems. You can check Crutchfield for requirements. Once confirmed, check wiring connections.

Finally, if all correct, you steering wheel components may need cleaning.