My buddy has an Audi and recently bought "vag-com" from http://www.ross-tech.com/vag-com/index.html. Vag-com is basically diagnostic software that he can control from his own laptop. He told meheused itto change theprogramming in his vehicles computer, liketurn off seat belt chime, program his keyless entry to rollhis windows down, among other things.

Does anyone know if there issimilar diagnostic softwarefor GM vehicles?I know dealerships use Tech-2 but a Tech-2 system costs$3,500+, my buddy payeda couple hundred for his diagnostic software.... Any input would be appreciated