Automatic spare tire release

I bought a Ford Explorer with the spare tire mounted on the underneath of the vehicle. It is really hard to get the spare tire out when you have a flat tire. It is an Eddie Bauer with alot of luxury equipment. Almost everything is electronic, so i thought that the following would be a good idea.
I have to hand crank the spare tire to get it out so i have been looking in the wrecking yards for a motor to build a winch to raise and lower the spare with a push of a button. Also, a quick release button or lever in case the battery is dead. This way it would easier for anyone to change a flat tire.