Having a Cadillac car alarm wiring diagram makes installing a car alarm easy. Find the Cadillac car wiring diagram you need to install your auto alarm and save time. Scroll down and find the Cadillac wire guide you need. Every Cadillac car alarm wiring diagram contains information from other Cadillac owners. If you want to install a car alarm and save time, you’ll love our Cadillac car alarm wire guide.