location of fac alarm/ 300m

Just curious where the factory alarm brain is located in the 300m

It is built in to the BCM (body control module) you cant remove it . there is a way to bypass it each time you use another remote . waht are you adding a remote start or just an alarm?Joe O'Byrne

Owner / Installer

I want to add on a shock sensor by way of using it on the door trigger wire and to add a hood and trunk pin so I do not have to add an aftermarket alarm. Do you have a the pin outs for the bcm alarm wires?

The car already has a trunkpin; it's tan/black at the BCM. The other door trigger wires are going to be tan/with different color stripes. My guess is that there's one for the driver's door, one for the passenger's, and one for the rears, and they will all be grouped together. Try testing for tan, tan/red, tan/orange, tan / YELLOW....stuff like that.