Can someone please tell me where the alarm for a 1985 300SD is located? Last week my car's lights all died at once, headlights, turn signals, interior, I mean EVERYTHING! When I shut the car off the headlights flashed twice and the horn blew (As if saying "See ya!). This leads me to believe the alarm is bad. I got one on Ebay (part # 126 820 08 26) and took the passenger side mat off where the seller said the alarm should be, but nothing! Where have the gods of Stuttgart hidden it?!?!