A super big thanks to everyone who has devoted their time to do this mod and post about it. It was a gigantic help.
FYI: I used the OEM auxiliary jack, a Cat 5 cable, a molex five pin housing with these
molex female crimp pins to connect to the jack end. I tried using the RS232 pins but they don't fit correctly on the back of the radio and I didn't want to saulder anything to the head unit. After several trips to Frys to try and find a housing or housings that I could use for the back of the radio, I finally gave up on trying to make a housing and just used
.100 female crimp pins to connect the five wires seperately to the pins on the back of the radio. This worked like a charm, and I wish I would've just done it from the get-go.
I was gonna post pics but my wife had the camera so youŽll just have to take my word that it all looks very professional.