This one is pretty good, I've had friends who use this.
http://www.sonicelectronix.com/item_...P-N-4103V.html
Although out of stock there, has the best info about it.
I know you said one fob, but almost all kits come with 2. As a back up you know lol

Here is where you can get them

http://www.amazon.com/gp/offer-listi...&condition=all

Quite a bit cheaper than $200