I do have a hot terminal in my 7 pin. I do have the heavy duty towing package and according to the manual it should be there. It's the one at about 2:00 on mine, the + one on the cover.
2006 Silverado 2500HD Crew Cab SB LBZ LT3
Dark Ming Blue Metallic, Gray Leather Heated Seats, Tow Mirrors, Bose XM Stereo w/6CD changer, ON-star
4" MBRP turbo down exhaust, straight thru Turbine muffler
Leer Premium 100XQ Canopy
245 Wrangler Silent Armor E's
AstroStart remote start w/full function remote