OK I just got another remote door lock key fob, now I am having trouble programing it for my truck. I was able to program the new fob - but now my old one wont work.

Heres the technique I used,

cycle ignition on/off 8 times within 10 seconds then press the lock button on the remote which you want to program.

The problem I am having it with programing 2 remotes !!

Any help is appreciated

Thanks