i have two 12 gauge wires running from my battery to my sub amplifier, does this effectivly mean i have 6 gauges. each wire has a 15 amp fuse so does that also mean i have a 30 amp fuse?
Not effectivly but it will work. I strongly suggest that you upgrade your wiring to the proper gauge
Chances are that it would be far more reliable to use a 6 gauge wire. The fuses should be fine, but check to make sure they aren't titanium-based, as they could possibly corrode with the setup you have going. Also, when you rewire for the first time, make sure to check the connections for the first 10-15 uses to make sure they aren't interfering with any radio signals, as this is a hazard.
Id say run 3 strands minimal because sometime it says its a certain gauge but there is not much wire inside, and to add the the 2X 12gauge = 9 gauge use 3 strands.. better chance of working right.
Funny you should say that. Since if you look closely at the grade of wire in each of the bundles of wire and compare them to a 6 gage wire bundle. 12 gage wire is a little thinner and not quite and strong and 6 gage wire is heavy and thick and really sturdy. this is so it carries the load of power better and it doesn't have many small wires that can overheat or become frayed because the bundle is stronger as a whole. Essentially by running the wires in sets of 2 different 12 gage wires you double the risk of a fire, short, or other electrical damage caused by the possibility of each or both wires becoming overloaded. 12 gage wire can only individually support a certain amount of power, and whether you double it or not you have basically violated the wires ability to have a safe current run through it as a constant. So, You better get down to the store and replace all that wire you doubled before you burn out your system, melt the wire, or torch your car.
