Cant find the VSS or dont want to tap into the ECM/PCM? Check this out! This is the Nav-1129 from PAC. It has VSS, Reverse, illumination, and brake wire so you dont have to find them all and run all those wires. I installed it into my 2008 malibu and it works great.

http://www.pac-audio.com/instructions/nav-1129.pdf (installation)

http://www.pac-audio.com/databusVehicle ... hicles.asp (application guide)

Would this be compatible with a 2006 Chevy Silverado K1500 4dr w/out Bose, OnStar and factory XM??

No, this is only for the NBS GM's.

Thanks for the reply.

Is there a similar item to simplify my application?

Metra etc....

It has VSS, Reverse, illumination, and brake wire so you dont have to find them all and run all those wires.

Sounds good , would it be available for a Avalanche with onstar?

Thanks