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93 saturn sl2
03-27-2007, 05:05 PM
Does anyone have a diagram for wiring up multiple sirens/piezos with a relay?

Vestax
04-03-2007, 02:09 PM
For a regular STDT or STST relay...

85 - to alarm's siren output
86 - ground
87 - fused constant 12 volts
30 - output to multiple sirens or piezo's