Isolating dome light from door trigger

all depends if you have a negative door trigger or positive door trigger and negative dome light or positive dome light. usually the alarm has a built in relay or you add one for the domelight. what you are doing is the alarm sends either a neg or pos signal to the domelight depending on what setup you have. the door trigger doesnt come into account because when you disarm the car the alarm is turned off so there wont be a false trigger. basicly all the dome light feature is doing is making the car think the door is open when it is closed.There are 10 types of people in the world, ones that understand binary and ones that dont.

Why would you have to use both the door triggers and the dome light on the same wire? Mike M2

Tech Manager

CS Dealer Services

Mike M2 wrote: Why would you have to use both the door triggers and the dome light on the same wire?

We did yesterday when we put a FM900A in a '77 Caddi !  :)

South Side Audio

2501 S. High St

Columbus, OH 43207

Ok, why? If it's for door trigger, use door trigger wire. What reason is there for needing the dome light wire after that? If your adding supervision it wouldn't be on the same wire....Mike M2

Tech Manager

CS Dealer Services