 | Alarm System Shock Sensor: (93-05 Golf , GTI , Jetta , Cabrio Upgrade your stock Alarm System w/ a Shock Sensor. Stock VW alarm systems are only triggered off when a door , hood , or hatch opened. They will not go off when something touches your car , or any type of shock implemented on car. There are many scenarios when stock alarm system will fail to stop ft , or alert you of any impact on car. The shock sensor full adjustable to go off on very light touches to hard impacts. $30 |