Mount the system processor (i.e. the "brain")

1. Choose a mounting location that will be close to the wires that you need to tie into, but far enough out of the way to discourage an experienced thief who may try to disable it. Common locations include under the dash near the steering column, behind a kick panel, or under a front seat.

   Warning: removing your seat could deactivate your vehicle's SRS system.

The small alarm "brain" should be installed somewhere close to the center of the car and out of sight. Under a front seat, under the dash near the steering column, or even under a center console are good locations.

2. Access your installation location, (for example, if installing behind the dash, remove your receiver and select a suitable location in the dash cavity.) and set the brain in place. Don't attach it permanently until you've made all of your connections.
3. Connect the wires and harnesses that you'll need to connect the brain to the rest of the system. If you need extra wire to extend the leads from the brain to switches, sensors or a power source, take the brain plug with you to the hardware store. Buy stranded wire that matches or exceeds the gauge (thickness) of the leads you need to extend. For sensors, 18 gauge or larger should work fine. For power leads, 16 gauge or larger is usually required.
4. Your alarm brain has a built-in pigtail-type antenna wire. It is important that the wire point straight away from the brain (a drinking straw acts as a good reinforcement), or at a right angle to the brain. Do not cut or ground this wire.

The alarm brain installed behind the center console panel.

Mount the siren

1. Choose a spot to mount the siren under the hood. Someplace high in the engine compartment, preferably at least 18 inches from heat sources like exhaust manifolds, radiators and heater cores, is best. It's best to aim the siren parallel to, or angled slightly toward, the ground — this will help prevent water from getting trapped in the siren.

Mount the siren in your engine compartment and route the wire back through your firewall.

2. If you mount your siren to a metal surface, use sheet metal screws rather than drywall screws and be careful not to accidentally penetrate fuel lines. brake lines, vacuum lines, control cables or wire bundles. If you mount your siren to a plastic inner fender, use nuts and bolts to secure it.
3. Route the siren wires away from a thief's reach and back toward the vehicle's firewall. Most vehicles have a predrilled hole in the firewall that you can use, but if not locate a good place to drill one. Once through, run the siren wires into the driving compartment.