Steering wheel mounted audio remote for coach?

Check out some of the Kenwood products. I replaced ours a couple of years back and was fortunate enough to be able to actually rebuild the "stack". The in dash video monitor was too low for safety so it went up on a gimble mount so it sits just above the dash now. The radio was placed in the top position of the stack and using a fresh panel cutout things look like factory. A small remote is available. I too use a thumb drive for music.