That's an awesome gift... if it has temp the mirror is the GenK50/51A made by Gentex who is the marker of all the high end mirror for almost every car manufacture. http://www.gentex.com/automotive.html

They don't sell the mirrors directly but you can buy them from Mito corp http://www.mitocorp.com/homelink-aut...g-mirrors.html
They might be a source to buy just the harness as you have the mirror

As well this mirror is a dealer installed option for the Ranger so your local Ford deal might also be a source to buy the harness only.

As well the mirror is available online all over so a few emails might find someone who can sell the harness only
http://shop.autodimmingmirrors.com/products-genk51a.asp

Once you find a harness here's the how to for the way to install it in your Ranger
http://www.ranger forums .com/f40/how...mirror-102210/