Stuey
Member
Registered: 16th Jun 00
Location: Perth , Australia Drives: 96 TR Astra GSi 16v
User status: Offline
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If I wanted to test a headunit before installing it in the car, what power supply would I need to operate the head unit? 12v DC or AC I cant remember. Also, do I connect it just to the acc (red) wire or do I need to supply power to the perm + (yellow battery) wire or both? Do I earth it or connect it to the negative of the supply. Just curious. Its straight forward when putting it in the car but I want to know how to set it up as if it were on a display board in a shop to test it out.
Thanks.
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Richie
Member
Registered: 3rd Dec 02
Location: Newport, Wales
User status: Offline
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12v DC connect the red and yellow wires from the headunit to the live and connect the ground wire to the negative of the supply.
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corb
Member
Registered: 24th Apr 02
Location: Calgary, Alberta, Canada
User status: Offline
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yeah, to power up a headunit, you need a positive and negative, just that. So if your just testing that it works, connect the red cable(switch live) and black cable(earth).
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