bluebelVETTE

I've purchase 1975 Vert convertable last December, it has after market alarm. One afternoon after driving the car a wird sound came on is not the after market alarm, it sound like a horn comming from the rear under the bumper. I traced the where it comming from there is a horn under the driver side rear close to wheel well. So I unplug the wire to keep it quiet. I had drove the car couple of times did not expirience that sound. Was that the factory alarm? If so, how can I disarm or disable it?

GDaina

posting to get the thread in synch w/the clock

Larsson

It does sound like the factory alarm since the horn was in the right place for the original alarm. The alarm should be activated by a keylock, on your car I think it is on one of the front fenders, on earlier cars the lock is on the back of the car.
If everything is working correctly it should be enough with turning off the alarm through that switch.

Pete76Shark

Not sure what your alarm horn sounds like but mine sounds like one of those back-up horns on commercial trucks.

gliot1

On a '75 the larm is in the spot you noted.

bluebelVETTE

The keyhole on the front driver side fender did stop the alarm, but when I turn it on the comes on right away without opening the door. What switches or relay that activates/turn on the alarm?

Ron 75 L48

I would look at the switch under the hood which is located near the windshield side of the engine bay.