The harness is PXH2FD1. I just hooked mine up today. I did have some issues with the dip switches & the unit did not work properly. I had purchased it off eBay. I called Peripheral and they were aware of the issue I was having and gave me a different dip switch settting (1,2,3,8). The only difference is that right now the display says "No Ipod c" and it could reset itself and not work or some dash lights could go goofy. They said to try it for a few days and if it works they will send out a new unit. So far it has worked. Sounds good though, I am crossing my fingers.