Been wiring in my alarm the last couple of days on and off and have now come to the door wiring. I was going to wire it up to the door pins of each individual door, but someone at work says years ago in his days of car modding he used to wire the door sensor wiring up to the interior convenience light so it knows that way weather a door is open. Sounds a bit dodgy to me, would tis work and/or be a good idea or not?