Hey group... I have a perplexing problem for the wiring experts out there. Have an '04 Ion. Came with the standard base CD player. I wanted the 6 disc changer (which I got) but NOT the new 6 disc/mp3 version - so I opted for last year's with 6 disc changer/cassette. (Some of my favorite music never made it to CD, so I'd still like to use cassettes on occasion.) Well, the wiring attachments are different (not a terribly tremendous surprise.) The plug does not even match up. Close, but no cigar...(sorry Ms. Lewinsky...) So would the remedy be to find a harness from a 2003 Saturn and splice? Or are there other alternatives to the dilemma? Is there an adaptor available? (Sould I ask Saturn?) Also, the large blue connector on the original was plugged into an adaptor that narrowed it down to a small white one which plugged into the original unit. The back of the 6 disc/cassette has 2 different ports: 1 small and one large. Do both ports need to be connected? (I assume so, but where would the secondary harness attach?) I know this is a tricky and laborious problem, but I suspect that others have tackled it, for many people do change out their sound systems. Any kind of help (especially if someone out there has specifically done the same thing in replacing their CD/radio system) is most surely appreciated. Warren