2007 yukon nav wiring

have a gmc 2007 yukon. have the interface for onstar/no bose system and steering wheel control adaptor coming in. installing an eclipse avn5500 navigation. need to find the speed sensing wire?? what color and where is the best tap in place? gps antenna location for a clean look inside the car or outside?? any help would greatly be appreciated. thanks

finished most of he install. found he stock location for the gps antenna. under the front portion of the dash to the right of the light sensor. remove the two pillar pannels and pop up the front part of the dash. so far, unit is working flawless. still need to hook-up in the vss wire. found the location of the vss wire. also added the pac eclp steering wheel adaptor. 5 of the 6-7 functions work. volume +/-, seek +/-, and source. no mute and band.

The PAC interface will only add 5 of the functions (the ones you listed), no additional.. Unfortunately. :(

VSS Wire -- Location: ECM (located in engine compartment, drivers side, near radiator) Black 72 pin plug, the pin number is 57, the pin location may or may not have a Yellow w/ Black wire in it. If it doesn't, insert a wire /w pin.

Backup Wire -- Location: BCM (Body Control Module) (located near steering column, left side) on second connector from top(white), Pin 22, Dark Blue wire.

 

 

The easiest place to get VSS is under the hood. On the left fender is the fuse box, under it are two large harnesses coming out towards the motor. The harness closest to the firewall, there's a GREEN / WHITE. The yellow/black listed in most tech sheets never works right. I usually put my antenna dead center of the dash. The center vents pop out and you can reach over them and stick it ontop of the duct.Mike M2

Tech Manager

CS Dealer Services

would happen to know the color of the vss wire for an '04 suburban?big V

04 Suburban, remove the instrument cluster, it's the GREEN / WHITE on the plug...Mike M2

Tech Manager

CS Dealer Services

Connect a DVM and roll the car with the key on. You'll get a pulse as it moves. It may also be at the radio harness if it has a highend Lux...Mike M2

Tech Manager

CS Dealer Services

ok thank you. that was my plan.big V