You have my condolences. It seems they built the entire car around the radio.

Mine is an '09. If yours has the clock in a little center shroud near the windshield, it's a POS. Mine was replaced while under warranty and it still was quirky and unreliable, going on and off and reporting the wrong time. I found an old accessory LED clock and wired it in, mounting it in front of the old clock.

IMO the electrical system on these cars is too complex and there isn't enough tech info to solve the weird issues that arise.

Here's an example of one that was unfathomable. I never did find the cause.

http://www.aveoforum.com/forum/f108/...83/index2.html