Yellow Wire (Ignition Input); Brown Wire (Positive Siren Output) - Crime Guard 328i2 Installation Manual

YELLOW WIRE - (Ignition Input): The function of the yellow wire is to
supply the alarm with a (+)12 volt signal Only when the vehicle's ignition
key is turned to the "On" & "Start" positions. The alarm verifies whether
the vehicle's engine is running or turned "Off " through this line.
Connect the Yellow wire to a "key" switched (+)12 volt ignition wire
located in the primary wire harness coming from the key switch.
-The vehicle's ignition wire will show (+)12 volts only when the vehicle's
ignition key is turned to the "On" & "Start" positions.
-The ignition wire will Not "drop" out while the starter motor is cranking.
-If the key is turned "off" so is the vehicle's ignition wire.
BROWN WIRE - (Positive Siren Output): The function of the Brown wire
is to supply a (+)12 volt output directly to the electronic siren when the alarm
is triggered and for confirmation chirps.
-Connect the system's Brown wire directly to the siren's Red wire.
-Connect the siren's Black wire directly to (-)chassis ground.
Warning: If the Brown wire touches ground damage will occur to the alarm.
Using A SPDT Relay To Drive Multiple Sirens.
To
Constant
12 Volt
Brown
Control
Wire
Unit
86
87
87a
30
85
To
Chassis
Ground.
Multiple Sirens
5