Aftermarket remote key lock

[84FS460]

I've been wanting to install a remote key lock in my 86 F250 and its already got the power locks. In addition to the aftermarket module will I need to wire in a relay or two? I've read a previous thread discussing this subject but just need to know if it's critical to install them and how to wire them in. The instruction manual isn't very helpful.

[Gary Lewis]

I installed a Code Alarm ca1155e alarm system that does the door lock/unlocking and explained how I did it here.  And yes, you will need to install relays if your system doesn't have them built in.