Navigation

I'm looking to install the factory navigation system into my 05 Silvy. Has anyone done this recently? I searched and found some old threads but didn't want to post in them. What is involved in this? I'm pretty sure its plug and play, but do I have to pay a dealer to program it after I install it? Also what about an antenna for the navigation?? Any info would be greatly appreciated!

I am also interested in this, Any info would be appreciated> I also have an 05 silverado

Do a search on the SilveradoSS forum and you will find a thread that explains which ones work with which RPO's that you have and what programming is needed.

If I wasn't spending my money on performance parts that would be a nice upgrade. It has been done.....