http://www.amazon.com/Metra-70-2003-...5891057&sr=8-1

This is the one I used in my 2004. It's probably the cheapest one, but you will lose the chimes and the date on the DIC. For that harness you will need to find a switched 12v to tap into. I used a fuse tap and some 14 guage wire to tap into the sunroof fuse. If you use the sunroof fuse, you can retain the RAP for the radio. And you just leave the black plug unplugged. Just tuck it behind the radio somewhere.