First things first.... try a new CD to make sure the ones you are using are not to blame.I have an 06 with Nav. I hardly use the CD player. The truck only has 74k miles on it. I inserted 3 CDs to listen to some music and the CD player is skipping/pausing on all 3 CDs. I was wondering if this is something that can be repaired or should I see if anyone makes a replacement?
If you have replaced the CD player in a Nav equipped truck please chime in and let me know what you installed and if you like it.
Otherwise..... just changing out that drive can be tough sledding w/o paying a butt load of cash. There's another thread currently asking similar question.
Others would have to comment on potential repairs.... I don't have info there.... but I wouldn't hold my breath. Maybe look for a used unit (entire head unit) on eBay or Craigs List or ??? (maybe search for threads here as well...trading post category)
I'm guessing if it comes to replacing that unit, you'll be better of with an aftermarket upgrade.