I HAVE A 2004 CTS LUXURY PACKAGE CTS WITH BOSE 6 DISC SYSTEM. i LOCATED A NAV DVD 6 DISC THAT CAME OUT OF A 2004 CTS. I PLAN ON BUYING IT. WHAT IS INVOLVED IN SWAPPING THE SYSTEMS OUT? IS IT A PRETTY STRAIGHT FORWARD PLUG IN? AND MOST IMPORTANTLY DO I HAVE TO BUY AN ANTENNA FOR THE GPS OR SHOULD IT ALREADY BE LOCATED IN THE VEHICLE? :confused:

See micreats posts on the CTS forum. He has just done and answered everything concerning the swap.