The best way to ground your car stereo components is to run a 10 or 12 gauge wire from the amp and 12 gauge from all other components such as head unit and active crossovers to a central location. You run both wires directly to the battery.
Amp Sub Install 2007 Range Rover Rangerovers Net Forum
Amp ground wire to battery. 2007 trailblazer lthead unit pioneer p4300dvd. The ground wire goes to the battery. Everything else includes your stereo system. Then run a single ground to the best source of ground the negative terminal on your cars battery. The reason for this is that if the stock ground strap from the battery to the body were to come disconnected or get pinchedcut somehow the amp chassis and ground wire become the new ground path back to the battery. The power wire from your amp wiring kit usually 16 20 feet in length needs to run from the battery through your cars firewall through the cars body to the amp.
The amp power wire goes to battery positive. If you do ground directly to the battery id recommend fusing your ground wire. I myself ground my amp to the battery and my batteries to the chassis. If for any reason the battery negative becomes corroded. Find an unused grommet in the firewall or one that already has wires or cables passing through it and that has enough room for the power wire to fit through too. The amp ground should be as close to the amp as possible and be securely screwed to bare metal on the vehicle frame or chassis.
People with a battery in the rear would connect a ground to the battery since its close. 2 apsm 1500 at 2 ohm strapped on zv3 d1 with ns softparts. If u do connect to the battery put a fuse on it. Luckily the solution is simple. Well to the secondary battery that is. All boats will have a primary battery for ignitiion and critical electronics and a second battery for everything else that needs power.
When you guys create a circuit dont you generally have the same size wiremetal throughout excluding components. When you use the frame or chassis as a ground the electricity flows from the battery through the copper wire and then back to the negative side of the battery through the frame of the car which is substantially different than a wire. 10 wire 136 amp alt 200 ah batteries 127 daily.