car wire fire the 12v source
12 Volt Housings

12 volt
car stereo
car security



Car Security

Vacuum Locks

These applications will be on specific manufactures, Mercedes or Audi, where the door actuator is controlled with a central vacuum pump.


Mercedes Vacuum Door Locks

A two second pulse changes polarity on a single wire that rest ground or 12V depending the position of the door locks. The two second pulse from the security or keyless system is neccessary. Will vary with models.











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