OK, that was what I was wondering. I think it was the one on the forum, and it looked like it bypassed the keys connection to the relays. When I look at my schematics I think my system uses the gmlan commands to set the on and ignition relays. Even my security bypass doesn't actually use a key or resistor. It reads the keys code when you turn it to on, and then send that code back to the obd when the remote is used. This may make bypassing the security easier as the bypass comes on when one of its wires is grounded.