Date registered: Jan 2007
Vehicle: 1974 280se w116, 1986 560sec
Location: Barksdale AFB, LA
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well it is part of what is known in the car audio world as the big three. you upgrade your alt wire to the bat, the ground to the bat, and the chassis ground, preferrably to 0ga wire. the whole reason behind this is your electronics of the car plus the stereo are going to tax 8ga wire, while your car will probably not catch on fire your amps will starve for power. having bigger ga wire helps the current flow freely without restrictions.i am not an expert but wires are rated to carry up to a certain amount of current, the smaller the wire the less current it can hold, the bigger the wire more current. thats why when you see big amps that truly put out thier rated power like a two thousand watt amp will have terminals for 0ga wire in for both ground and hot and no less than 4ga. some of them even have two power and two grounds for extra current pull. replacing the wire does work, in my 560 sec i put 0ga wire everywhere (i also have second battery) and wiith a a system totaling about 1800watts my lights dont dim at all. whereas before when i just had the smaller wire they did dim. most people wont need a second battery but i plan on upgrading to a 2500watt bass amp soon. just think of it like this if you had to push a load of rocks would you like to push it through a crawl space or a tunnel?
Last edited by benz280se; 08-26-2010 at 12:24 AM.