I got mine off Ebay for $300. It was an older 20 gig model but works just fine. When I first got it, it quit working and had me worried. A little google search later and found it needed a software upgrade. Once that was done has worked fine since. I have the bench seat so switching the unit out took about 10 min. Any other questions let me know.
Sean

 

I have 1300 miles on my truck with stock 17's and live in the Northern VA area, zip code 20120. PM me if interested and hopefully we can work something out.

 

I have stock 17's and live in Tallmadge OH...bout 2 hrs from Pittsburgh. I would drive to you for these wheels. Mine have 8k miles on the wheels/tires and not a scratch on the rims.

 

Well I got lucky I knew the guy somewhat thru a relative that works at the same dealership as him. I would be worried a little but when you pay with paypal and use Ebay you are covered somewhat, look into that.
The REN which is MYGig(not the navigation one) experienced a lot of problems and has now gone to a new manufacturer....Mitusubishi. This is what someone who worked for the radio Manufacturer had mentioned to me, not sure but I have seen a 2010 radio and there is one connectiond different, I think it is the antenna. In fact if anyone has a 2010 check and see if it has a fender antenna still.
I got mine for 250 on Ebay, it worked perfect even Sat from the get go but I had the dealer scan it into my VIN so if I have other issues that the RES or REN might respond to a fix differently I am set. I also purchased and installed myself the Uconnect module and mic. Well the dealer has to star scan that in, supposed to be halfhour job. 2 dealerships all day a both finally second one got it working...over 200 total but I got a refund from Customer Service from the first dealerships mess up,,turns out they mess up everything, whole truck was reflashed...could be good or bad we shall see.But that cost 257C for parts then an hour labour at second dealer. The story is longer but I have already told it other posts so I better quit.
Anyway make sure you get a high speed Canbus REN if you just want MYGIG, or same high speed RER if you want the Nav. That one will cost ya a few bucks. If you don't want warranty problems just buy one off the dealer let them install it and well spend a lot have piece of mind but I believe they only give you oneyear warranty so..........yourdecision.
Check out http://mofv.com/mygig/ lots of info there