... . built-up device auto alarm system, hidden car alarm for fuel line, hidden car alarm for fuel line, auto ... of then have a fatal fault, which the alarm will be found easily by thief, and unchained ... .4. The alarm will be unchained. OK, Drive now!Guard: After stopping the engine, the alarm system can cut ... in the guarded status.Installation:Install the Hidden Alarm at a concealed place, near to the fuel ...