Originally posted by dunk
Just to be clear on The OEM alarm. i would like to completely remove the alarm before installing the aftermarket system. Unplugging the horn and removing the wiring from the glove box to the center console is straightforward. When I remove the starter and horn relay from the steering column area, I will have to jumper two of the wires in the starter relay plug in order to still have current pass to the starter switch. Is this correct?, and if so what two wires do I need to connect. I'm sure that when the car was new there was a plug in there that jumpered the wires, although by now this plug is long gone. I looked up in the dash in the hope that the technician might have left it up there in case the system was removed, but it turns out not to be the case.
Unless you're planning to sell the OEM alarm, there is no need to completely remove it. I would suggest unplugging the harness behind the glove box that goes to the brain, and removing the keyless module above the fuse box. I didn't even look at the starter interrupt relay. It's passive, so it doesn't cause problems.