Installing Command Start and Keyless entry

Hi
I'm thinking of installing a command start and a keyless entry in my 91 ford explorer. And wondering if anyone has a wiring diagram or advice.

Or should i just pay a pro to do it ???

Thanks

have you found this info i am looking for the same stuff except mine is a 92 and i need the wiring diagram

you can find the info in www.bulldogsecurity.com (http://www.bulldogsecurity.com)