Abrams Tornado - Installation Instructions; Speaker Installation

6.3、Wiring instructions
Connect the red wire to the NEGATIVE battery terminal and the black
wire to the NEGATIVE battery terminal.
7、Installation instructions
7.1.Installation for Speaker
7.1.1. Drilling four φ8.5 holes in the vehicle ensure that the bracket of
the speaker match with the installation position.
7.1.2. Mount the support bracket to the speaker using the supplied
screws, as shown in figure 1 and figure 2
Low
Frequency
Loudspeaker
Tornado
Main Siren
Amplifier
Blue Wire - Voltage Detection Input
Red -
Positive
Power
Black -
Negative
Power
Gray Wire - Common Line Input
White Wire - Activation Switch
Brown/White Wire
Brown Wire
Main Siren
Speaker (S)