Plenty of options for a HU in your truck. About the only thing you need is a harness to keep your door chimes, onstar, steering wheel controls, etc. Everything else is fairly basic, at least as far as a custom stereo goes.
I'd check out Crutchfield. Lots of vehicle specific info for all of their stuff, including what you might need to get everything to work. They even have some custom enclosures, one that fits under the 2nd row seats for a lof of our trucks.
I'd check out Crutchfield. Lots of vehicle specific info for all of their stuff, including what you might need to get everything to work. They even have some custom enclosures, one that fits under the 2nd row seats for a lof of our trucks.