Vicovation Vico Power-Plus, Instruction Manual, Page: 16 / 59

STEP 6. Connect the black line (GND) for grounding:
Find out the fuse which is connected with device which will be powered
ONLY after vehicle engine turned on, such as audio system, or cigar
lighter jack.
Pull out the fuse to and connect the red ACC+ wire and then insert
back together. Make sure there is no short circuit happening.
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Special Notice:
Some metal snaps on vehicle may have no connection with car metal
ground together (like metal snap but connected on plastic parts, no
grounding). Use multimeter to ensure it’s the real grounding. Incorrect
grounding may cause fire or other serious damage.
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