Clifford G5 siren and tilt sensor?

You can put one of those sirens in it if you use the secondary horn / siren output, but on the main siren speaker output, you need to use the clifford speaker. As far as the tilt sensor goes, clifford had one of the best sensors out there and its probably working normally. If your trying to test the sensor by rocking the vehicle it wont do anything, and it isnt supposed to. Arm the alarm and wait for a minute or two, then take a jack and begin jacking you car up like your going to try to remove a wheel. On my 300M the tire doesnt leave the ground before the alarm is tripped. If its not working like that, amke sure the tilt sensor is mounted correctly (as horizontal as possible)