I had a 2003 Trailblazer which I had the F700BT installed in, and it worked fine. I changed vehicles to a 2003 Tahoe and the wiring harness for the tahoe is the same that was in my Trialblazer. I plugged it up, and there is no sound on anything. the unit does not beep when selecting anything, Radio, ipod, cd- no sounds.

 

The chime adapter does work correctly, when the door is open it chimes or the lights are on it chimes.

 

The only other difference is that the Trailblazer was not a bose speaker setup and this Tahoe is? would that be the culprit?

 

I have done the mute/ hack when it was installe dint he trailblazer so I could change address on the NAV while moving. That still works on the tahoe correctly.

 

Thanks for any help/suggestions.