I am wondering if anyone knows which harness the gray/black wire is on the f150s wiring harness is the one i need to hook up to on 04 f150 5.4L for the vehicle speed sensor input, there is a gray/black strip wire on the middle harness of the three on the computer behind battery is this correct.
and can i just ground the parking brake wire to get screen to play while moving on avic 90dvd -navigation unit. Thank you

 

Did you look on the HU harness? I thought it went to the factory radio harness for the speed-volume feature.

 

I found mine in the passanger side kick panel. Was very easy to get too.

F150 2003 Supercrew

 

looks like factory radio harness has speed wire for hwy volume control feature on audiophile system

 

will be installing my D1 this weekend in my 05 screw...

i looked and looked through this forum and the info didn't exactly jump out and grab me, so....

just so I got this straight --> in the factory radio harness, there is a gray/black wire which is the lead for the speed control volume. this wire is adequate to hook the D1's speed sensor lead up to? Correct? If not, then which color wire is it on the radio harness that the speed sensor is run to?

 

The grey/black wire will work for you

 

Thanks! Will do the install this weekend. I plan to document it and post for future do-it-yourselfers.

 

Thanks - Grey Black worked great although not much wire to work with

 

is it the small Grey with black stripe in pin #14?? lines up with the pink phone mute wire on Schoche kit.

 

Yes.