With a double din Pioneer DVD Bluetooth system. I am sure if the correct cables where used when they did this JVC install. Non Bose, Onstar system(don't use) The JVC CD player never seems to leave at the last song that was playing instead it starts the cd over again, I assume something is going on with how they installed this system. I get the alarm chirp and it everything else seems fine, but what should I look for, when I go to install the double din? 2003 TrailBlazer LS 4x4 model