so why not just put in a aftermarket keyless entry or alarm and be done with it?, that would solve all the problem, as for the freq of the remote no one is going to be running around with a freq counter checking cars for incorrect remotes nobody would ever know the difference and slim to none chance of it ever affecting anything since the code is revolving. I will note I have never seen a gm alarm/keyless entry fob ever stop a (gmt800) truck from starting if the key is used. the only thing that would stop it is if the ignition lock was bad (hall-sensor or the associated passlock module), the key overrides anything the fob could do once the key is on, you could arm the alarm with the fob all day long, smash with a hammer, then just stick the key in and start the truck and drive away, the door lock is mechanical the key will open it always, the ignition is mechanical the key will always turn it, the only thing stopping it from starting is the hall sensor or passlock module (key overrides the fob)
