Trying to install narva driving lamps unit has black and white wires can you tell me which is negative and positative. first time doing electrical work am determined to save myself fitting charges.
Thanks
In 12 volt DC automotive electrical systems black is always the ground wire or negative. Make sure you disconnect the battery before doing any electrical work (unhook the negative cable first). Don't splice into any wires under the dash, use a piggyback fuse connector on one of the accessory fuses eg; cigarette lighter.
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