I bought Business class HU with Bluetooth. My question is will it be an issue swapping HU's out. In other words are there anti-theft devices in place? will bluetooth work if my previous HU didn't have BT or will coding be required, if so any quick links to codes would be helpfull. I purchased the DCAN cable offered in the STICKY at the top of this forum. Havent figured out how to code yet though and was hoping HU swap would be a PNP. Anyone know? Thanks