I'm new here, I hope I posted in the right place, I have a 2007 NNBS with the 4.8, to give a little backstory which might help diagnose my issue, this truck is hooked up with a VIPER remote start and Car alarm, which both seam to work correctly, also has an aftermarket Stereo. The issue I'm running into is none of my steering whee buttons work, on either side and don't even light up. My main concern is cruise, I drive a lot and need this, nothing worked when I bought it so I'd like to assume its and easy fix or related to the auto start/stereo, I'm really not wanting to take this to GM for a fix, after days of digging, it could possibly be the Clock Spring? Claims a very expensive part, and not really find anything about how to test or change it. Any and all help would be helpful. Thanks!