Adding steering wheel audio controls

[Bill336]

2001 GMC Sierra 1500

 

The truck is an SLT trim level, but the original purchaser didn't get steering wheel mounted controls for the stereo. The existing stereo is dead as are the front speakers. I'm going to swap it all out for a Pioneer setup. I know there are various aftermarket kits to upgrade existing controls, but is there something out there to allow me to add them where they never existed? The best thing I've come up with is a used steering wheel with the factory controls. As I understand it the necessary wiring is already in place in the existing steering wheel, so it should be a "simple" swap.

 

Am I barking up the right tree or is there another way?