17
Insert Red, Yellow & Black Cables
a. Yellow cable (BATT/B+)
The yellow wire should be connected to the constant power supply in the car
fuse box.
Test method: Use a voltage tester to check the fuse slot to make sure it still has
power when the car's engine is turned off.
c. Black cable (GND)
Connect this black cable(GND) to the metal part of the vehicle. Most cars have
screws or metal parts next to the fuse box. Connect the black cable to the screw
or metal part. (As shown on the left).
b. Red cable (ACC)
The red wire should be connected to the ACC power supply in the car fuse box.
Test method: Use a voltage tester to check the fuse slot to make sure it has
power when the car's engine is on but no power when the engine is off.
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