i just got two new aiwa stereo speaker's they come with their own wiring in the back but i dont know which wire is whatthere is one black wireand there is another black with gray dashesim thinking the one with dashes is positive?the speaker works both ways
I wouldn't worry about polarity too much with those speakers. You're never going to be able to hear a difference, and your amplifier isn't going to care.
Chances are the marked wire is positive. For your purposes it doesn't matter a whole lot. The phasing (which DOES matter) will be correct as long as you are consistent with both speakers. If you can remove the front grill or otherwise see the speaker cone directly, you can check the polarity with a AA or other 1-1/2 volt battery. The cone will move forward when the positive wire is *briefly* touched to the positive terminal of the battery while the negative wire is held on the negative terminal. If you see it move back, you've connected the wires in reverse. Don
You can use your old ones.
