How to Install a Car Alarm in a Pontiac Grand Prix
Installing an alarm in the Pontiac Grand Prix is a great way to protect the vehicle and its contents. Putting a car alarm in the Pontiac Grand Prix requires a working knowledge of car electrical systems and connections. The power lock relay on the Pontiac Grand Prix is in the door, which means removing the door trim for access.
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Instructions
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Ensure you fully understand the alarm installation manual and the connections required. Open the hood and disconnect the positive battery cable.
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Push the driver seat all the way back and remove the lower dash panel. Install the shock sensor per the alarm manual's instructions and run the wires to the area under the dash. Drill a small hole in the dash or center console for the LED light and snap it into place.
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3
Remove the screw holding the driver door handle in place and unsnap the trim. Find the door lock relay and attach the alarm lock module if equipped. Identify the starter wire in the ignition bundle at the back of the steering wheel and connect the start disable relay.
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4
Connect the alarm power wire to the positive battery cable and mount the alarm in an open space in the engine bay, facing the engine or firewall. Run all of the wires along the body panels to the driver's side of the firewall.
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5
Feed the wires through the firewall using an existing hole in front of the steering wheel. Locate the wires coming from the engine bay, pull them through and connect them to the alarm control module. Attach the rest of the wires to the control module.
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Push the control module to the back, right side of the dash, behind the stereo. Drop the control module gently into the cage behind the radio and secure the wires to the metal divider.
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7
Reconnect the positive battery cable and test the alarm. Adjust the sensitivity if desired and secure any loose wires with zip ties.
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Tips & Warnings
Installing a car alarm yourself is likely to void some or all of the manufacturer's warranty.
