I put a horn on my 65 that will be hooked up to a dome light button on the doors ... I also plan on putting one under the hood , and the on/off switch is hid in the grill .. that way I can have an alarm on my old timer.. plus I have a battery main cut off in the grill too .. Its just the cheap one with the red plastic key , but it works .. My 65 aint much but I've had it since 1979 and I dont want no sorry a$$ taking it from me .. I'll do my rat kind of like it to by hiding the main cut off to the battery some place