Best thing for the rim protection, other than more than one style of lock nuts, is an inclinometer or piezo motion detector. Both of the sensors are mercury based motion switches that measure the resting position of the vehicle when the alarm is set, and if changed, set off the alarm. Either option normally will set you back $89. The inc meter is forgiving enough to accept wind pushing the car around without setting off the alarm, its more of a deterent to towing. I prefer the piezo sensors. You can attach one to the rear axle and run the wires along with the brake lines for easy installation. This way the shock sensor in the alarm, which you should mount very securely to the steering column, protects the vehicle in general and the piezo will detect someone jacking up the rear to get your wheels.
The extra pin switch for the hood is a good idea, but consider a mercury switch instead. Pin switches get old quick and can stick easily, plus the mercs are millions of times easier to install. Maybe a pin switch on the hood release pull rod. Be very thorough (read picky) when choosing a place to mount the siren. Best option is to point it at an angle towards the ground so sound radiates in all directions out from under the hood. Make sure and drill a hole in the center of the horn in a position that will help drain water out if it should get in there. Remember that if anybody can spot your siren or its wires, its useless. Any sh**head with snips or a can of foaming shave gel can kill that thing in a second.
Verify that you can buy this system without having it installed. The CC20 was replaced by the IQ700. Both should have remote shock sensor sensitivity adjustability. Big advantage there is that you can go from sneeze level to smash level with the remote and valet switch and not have to mess with the brain. More features, more money...
Anything else, just let me know!
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1BADS72
Robert Anderson
The Radio Shops
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[This message has been edited by 1BADS72 (edited 01-29-99).]