1998 Club Wagon: Will keyless entry work if van didn't come with it?
 

Didn't upgrade to keyless entry when purchased the van back in the day. Basically I'm wondering if I can grab key fobs off amazon or eBay and program them to work.

Or to get keyless entry would I actually have to have the system added to van itself.

Wondering if maybe the keyless entry is there but we just didnt receive the key fobs since we didn't pay for the upgrade.