I bought a radio/CD player from a '04 GXP today. It is identical to the one in my 2008 GXP that has some display areas dim. The guy at the junkyard said it will work if I don't disconnect the battery when removing my radio. I asked about he one I took from the '04 and he said they "do it right" so it will work.
Is this true? If not, how can I override the Theftlock when installed in my '08?