I need to know where to find the vss wire on a 2006 trailblazer asap, i cant wait anylonger, im in the middle of the install and stuck here, please help!!!!!

Contact "brachoza" - see the following message

http://www.avic411.com/forum/viewtopic.php?t=1057

most likely, he will be able to give you the correct wire.

If your truck is like my '05 Sierra, then it's here:

Speed Sense dk. green/white 4K instrument cluster, pin A4
or PCM - The PCM (Powertrain Control Module) is in the left front of the engine compartment to the left of the fan shroud. The VSS wire is in the green plug, pin 50.
It is much easier to get it at the cluster than the PCM

http://www.avic411.com/forum/viewtopic. ... highlight=

LOOK THROUGH THE REPLIES AND THERE IS A PIC. OF THE SMALL HARNESS THAT'S NEXT TO THE RADIO HARNESS. IF YOUR RADIO HAS SVC OR GOT LOUDER WITH ACCELERATION THEN YOU SHOULD HAVE THAT WIRE ON THE SMALL HARNESS. IT'S NOT HARD TO FIND IT'S TAPED TO THE RADIO HARNESS. PM ME IF THAT DOESN'T HELP. IM ME AND I WILL TAKE ANOTHER LOOK IN THE BACK OF MY HU. 2006 YUKON.

BEFORE I FORGET I THINK THERE'S TWO GREEN/WHITE WIRES SO JUST TAP INTO ONE. MAKE SURE THERE'S NOTHING GROUNDING AND GO IN REVERSE OR FORWARD WITH YOUR SYSTEM IN CONECTIONS. LOOK AT YOUR SPEED SENSOR IF IT GOES UP BY 1 - 2 THEN IT'S THE RIGHT WIRE.