I have a 2006 HHR LT it has the single cd radio with satellite radio and aux input with the cat button. I found a used HHR radio on ebay that came out of a 2009 hhr LT. It looks identical to my radio same connectors. Can anyone tell me if this radio would work in my 2006? They say it is unlocked so a dealer doesn't have to unlock it to my HHR. Ebay tells me the difference between the 2006 and the 2009 might be the data delivery might be different. I would appreciate any info. Or should I stay awY from the 2009 HHR radio