Buying a used 07 escalade..any advice?
 

Hi, I'm in the process of lookingfor a used 07 escalade. Just wondered if anyone had any advice on things to look for when checking this truck out. I have seen a few lemon buy-backs when I have checked out some 07's in carfax so are there any issues with this year/model to look out for? Also what is this forum's opinion on stock navigation vs. aftermarket for this vehicle? Any issues retrofitting a stock nav to one that didn't originally come with it?

thanks in advance for any advice