http://www.explorerforum.com/forums/showthread.php?t=96635&highlight=start
aftermarket remote-start, not factory.
I did the install w/ Hokie, who is a certified audio installer. It took us pretty close to 10 hours to install it all. It isn't too complex in theory, but you can run into snags figuring out which wire is which etc. Try to have a friend who knows a lot about it help you. I dont think I'd do it alone if it is your first time trying something like this.