add keyless entry?

Hello! I have a 98 blazer without keyless entry. I was wondering since I have power locks how can I make it keyless entry? Is it just a matter of finding a BCM(body control module)(I think thats what its called)and remotes from a blazer that had keyless entry?Thanks!

Nothing is as simple as it sounds, more parts, (and wire harnesses) are involved than just a BCM. Easier, cheaper, less parts and work involved if you install an aftermarket keyless entry system.