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Use a multimeter to measure the voltage on the fuse by switching to the DC voltage range.
When the multimeter detects voltage, remove the car key. If the voltage changes to 0V, it
means that the measured signal is ACC on the car.
Turn off the main power switch on the vehicle, and place the key in the OFF state.
Connect the power cable according to the main power switch installation mode. See Figure
2-22 and Figure 2-23.
Before connecting with power cord, select proper fuse. 7.5A fuse is recommended.
The positive and negative poles of the battery must be equipped with protective
devices such as fuses.
For vehicles where the master power switch is installed at the cathode of the
accumulator, isolation installation is needed.
Vehicle main power switch installed on the positive pole of the vehicle battery
Vehicle main switch installed on the negative pole of the vehicle battery