[Wally Arntzen]

Hi Brad,
On my 88 coach I have a switch on the lower dash for the horn that can be set to city or air. City for the car type horn and air for the air horns. There is a lock type switch on the top of the bay door next to the front of the entrance door. There is a switch in the cabinet at the right top above of the sink and a panic switch next to the bed.
I can activate the alarm by turning the key outside if I want the alarm on when being away from the coach, or activate by fliping the switch in the cabinet above the sink if we want on when we go to bed. On mine if you flip the panic switch next to the bed the horn will start going on and off and all of the exterior lights will flash on and off with the horn.
I try mine about once a year but I really do not use it on a regular basis.
On the bottom right of the entrance door on mine there is three door switches, one for the entrance light, one for the step to go in and out and one for the alarm.
With yours also being an 88 it may be similar, however, Newell did always do the coaches the same.
Hope that is helpfull.