Most automobiles connect the negative terminal to the frame of the vehicle negative ground. Feb 11 Posts: Negative to negative. The new cupholders? Remove the masking tape from the dash or centre console. Patent 2,issued in Many portable electronic devices such as music players or mobile telephones use a cigarette lighter receptacle to recharge their internal batteries or to directly operate from the vehicle electrical system.
If all you want to plug in is a cell phone charger, or other similar 12 volt accessories, then a cigarette lighter socket is what you want.
Wiring a Cigarette Lighter to a Battery
Patent 2,issued in Two kinds of aftermarket cigarette lighters are available, those with an illumination bulb A and those without B. This standard covers plugs and cord sets that insert into cigarette lighter receptacles. Wiring a cigarette lighter to a battery is actually extremely simple, and you can either go a DIY route or buy a product that is designed for this specific purpose. In newer cars, the socket is equipped with a plastic cover without the lighter heating element. It is best to find a position in the centre of the dash to give both driver and passenger easy access. Most automobiles connect the negative terminal to the frame of the vehicle negative ground.