In my experience, one wire will have little ridges or ribs along its' entire length. The other one will be smooth. Not sure which one is supposed to be positive or negative, but you can just assign one wire positive and the other negative. Just don't mix them up and you'll be able to tell which one is which at either end of the pair of wires. Hope this helps.:)
The positive speaker wire is a solid color, your negative wire should have a stripe on it.
On the car battery, the positive wire is red and the negative wire is black. If the body of the car is metal or conducts electricity, then the body of the car serves as the negative wire. The metal in the engine serves as the negative wire.
Check the wires with a multimeter.
In a DC circuit Red is positive and Black is negative. In AC systems White is neutral and Ground is green or green-yellow stripe.
The negative wire is grounded.AnswerThe negative wire is grounded.
The standard speaker wire colors for positive and negative terminals are typically red for positive and black for negative.
copper is positive
The positive speaker wire is red while the negative speaker wire is black on a 2008 pathfinder.
The red wire is Positive, (+) and the Black wire is Negative. (-)
One way to tell the difference between positive and negative wires is by their color coding. Positive wires are typically red, orange, or another bright color, while negative wires are usually black or another dark color. You can also use a multimeter to test for voltage: the positive wire should show a higher voltage than the negative wire when tested.
Hot is positive.
If you want to run both coils,you have to wire the positive to positive and negative to negative on your sub,then run a wire from each plug to the amp. Positive to the positive side of the amp and negative to negative side of the amp,(you can run in bridge mode or stereo if your amp can handle the load)