You have also the issue of the transponder in the key. Check audio/video section and some have figured it out. I think they had to take a duplicate key and install it close enough to send the signal to start. I love remote start and have it on all my cars, and I don't even live in the snow, but I don't want to mess with this car. I have installed r/s starts since the late 80's. I had one on a manual mustang, but you have to make sure you don't leave it in gear. You bypass all the safety by wiring to start a manual. You get used to it and pretty soon it becomes habit. Good luck.
Cruzinquick