Just bought a 2005 Grand Prix and the factory alarm is going off randomly. I disconnected the battery for now to stop it. Looking for a bypass method. Car has no keyfobs that came with it.

I've read that Connector 2 pin 24 (purple wire) on the BCM is the factory alarm disarm wire for putting in a remote start. Normally this wire receives a ground pulse when the key is turned in the door to disarm the factory remote start.

My plan: ground the damn purple wire permanently and call it a day

Anyone try this before or see a reason why I should not do this? Thanks for any help.