Ok, so I have the classic monsoon 6-disc "CD CHANGER ERROR" in my '06 GTP. I decided to follow everyone's advice and replace it with a single disc from the '08 and '09. I tracked one down on ebay, gathered information and resources, but I have a concern about the DIC controls and a possible security lockout. I was wanting to know what sort of drawbacks would result from replacing the head unit and what would be permanent, reversable, avoidable etc. Thanks in advance for any advice.