I got the KVT-815DVD head unit and the KNA-DV4100 navigation unit my problem is with the nav unit i have been looking and looking for the speed wire but cannot get it right i have heard thaT IT WAS THE BLACK AND GREY WIRE BEHIND THE RADIO AND THE BLACK AND GREY WIRE OFF OF THE PCM PIN #63 BUT THAT PIN THERE IS NOT A BLACK AND GREY WIRE DONT REALLY KNOW IF I SHOULD TRY THAT #63 OR WHAT OR MAYBE IT IS IN A DIFFERENT PLACE.

I HAVE A 2004 F-150 CREW CAB