I just had an HHS2200 installed in my car and the only siren tones it has at the moment are manual and wail. The installer told me that the only way to get the other tones (yelp and piercer) is to hook it to the horn ring. Is this true, and if it is, is there some other way to go about hooking it up without using the horn ring to get
the additional tones (perhaps a momentary switch) ?
the additional tones (perhaps a momentary switch) ?