At least your MP3's play. GM installed the wrong damned head unit in my Optra5. I have the upgraded 8-speaker system, but only the base head unit. I'm getting a runaround by GMCC (General Motors Customer Care), and the dealer is currently only offering $75 (option cost) as reimbursement. Essentially they are attempting to pay my satisfaction off even though replacing the head unit with the proper U3L model AGC-3106V4 MP3 player is what would be ideal.
I want my MP3's! If this doesn't pan out, I'm likely to buy one off eBay and replace the base unit. I only found one so far from an owner of an Aveo in the states. If any of you know of one...lemme know please?