Keyless Entry module

[Ridemywideglide]

Anyone have the part number, and know where it's located in the truck? and what relays may be needed to add to a truck that didn't have it factory?
I've got all the power accessories, but RKE, and I'd like to add it without using aftermarket. Thinking I could find one at a wrecking yard and plug it in and go.. :rockwoot:

Thanks
Brad