Purchased a factory BMW alarm for my 1995 e36 M3 with the intent on installing it using the factory pre-wired harness. I thought as long as you have it labelled in the trunk as pre-wired, then it should be (see pic). Unfortunately after removing the glovebox the wiring harness wasn't there. I move all the existing harness around to see if it was tucked in behind something but no luck. Is there anywhere else I should be looking? Thanks in advance.