I just installed the parts needed to finish the a/c install on my 2010 Aveo.I cannot get it to work.I used a tech 2 tool to turn it on and it still wouldn't work.I took it to the dealer and they spent a lot of time on the phone with GM and it still doesn't work.The car came with the C66 option so there has to be a way to fix it.I don't know what else to do.Any help would be greatly appreciated.