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Car Alarm Installation Guide

Below is a quick installation guide for most car alarm systems. Refer to your manual were needed. Car alarms can be difficult to install and include lots of wiring and sensors to install. Take it step by step and following the instruction manual carefully.


Steps to installing a car alarm system.

1. Mount the siren to a solid surface under the hood. Make sure that you point the horn of the siren toward the ground so that moisture won’t affect the sound or horn.
2. Drill a hole through a rubber grommet in the firewall of the car and feed the sirens wire through the hole into the passenger compartment of the car.
3. Feed the power wire through the same hole on the passenger side. Make sure there is enough slack to reach the car’s battery. 4. Connect the alarm’s power wire to the battery.
5. Put a fuse on the power wire next to the battery.
6. Mount the shock sensor as described in the car alarm’s manual.
7. Drill holes in the dash were you will want to place the LED status indicator. Feed the LED’s wire through the hole and place the double-sided mounting tape to the back of the LED and place it over the hole in the dash.
8. Find the wires that work the car’s power door locks.
9. Connect the door-lock relay to the lock/unlock wires and connect the alarm wire to the relay in the manner described by the tech advisor. 10. Locate the wire that works the courtesy light if the alarm has current sensing.
11. Connect the current sensing line from the alarm to the courtesy light wire.
12. Locate the factory door trigger if the alarm does not have current or voltage sensing.
13. Connect the factory door trigger to the alarm.
14. Locate the starter wire on the steering column below the starter switch. Cut the line and connect the starter disable relay.  Connect the starter disable wire from the alarm to the relay.
15. Mount the valet switch somewhere under the dash.
16. Connect all the wires to the proper inputs and outputs of the alarm.
17. Find a sturdy surface under the dash and mount the module under the dash.
18. Use tie wraps to secure the wires of the harness and mount it under the dash.
19. Arm the alarm and test. Adjust the sensitivity as needed.