i understand the e34 came with the factory fitted Cobra alarm unfortunately, my '96 5 er 's alarm is going wonkyit beeps (indicating door not properly shut) almost everytime i try to arm the alarmit also alarmed last night, the security guards at my apartment got me out of bed to disarm.thus the thing is:do u guys think its best to go back to the cobra installer?do they still exsist?AB?Or visit any competent workshop electrican? much obliged...FLY