Originally Posted by Chucks05EDGE
What would I need to install power windows and door locks on my truck then? I don't have a GEM...
At least for the years I am familiar with (97-01) the power windows and locks are mostly independent of everything else...except for the driver side auto down feature which the GEM helps out with. If you just want functional locks and windows, you can always make them work with just the switches, actuators, and a few relays. Keyless entry will complicate things a little more. I'm in the process of adding power windows, locks and keyless entry to my 97. It's pretty straight forward. I just needed new switch bezels for the doors, window motors/regulators, lock actuators, and the alarm/keyless entry module out of an explorer. I am already switching out the GEM and relay boxes for other reasons.
You have a GEM...it just may need to be swapped for one from a truck with those features. I don't know for sure how things may be different on an 05, but some switches and relays will always make it work.