Find that Short

Well, I fixed the issue with the brake light not going off but I still have the door ajar light on. The biggest issue that I have is with a drain. Some where in all that electrical there is a short. Anyone got a suggestion on how im going to find it. im going crazy.....

MaX

the one that beeps when your doors open?

No, just the light. But I think the beeper is disconnected..