PLEASE HELP! need help finding the vss wire. the original radio had the speed volume built in so the radio would get louder as the speed increased. cant i just hook into that wire?(grey and Black)

also need to know which wire to hook into for the pac-sw1 module. is that in the original harness? i think its the blue and red!

i have 4 wires in the original truck harness that don't hook up to any thing? no pins and wires in the new harness.

1. grey and black

2. blue and red

3. red and black

4. black.( i used the main black for my ground, was 2 black wires)

thanks for your help.

What type of car is it?

OPPS!!! 2007 ford f350,

Just understand that the VSS will not give you speed sensitive volume on any Pioneer navi unit.

ok thanks. do you know where i can find out which wire to hook up to the vss. and is there a way to get the speed control volume?

One of the many installers on this forum can get you the info for the VSS for your vehicle but as I stated in the last reply, there is no speed sensitive volume on any Pioneer navi system.

Gray/black is speed sense.