buy a new viper and sell the old one once you pull it out. they are plug and play but the new ones have a turbo timer built in. that way you can sell whatever you have now and have a better alarm with no install.... or as you get out press the lock and unlock buttons at the same time (remote start) then get out and arm the alarm, only problem then is it will idle for alot longer then needed. rear strut tower bars are hard to find and expensive, atleast when compaired to the front. Just goto ebay for the MBC they are cheap. or you can make your own