View Full Version : quick help

03-22-2007, 12:56 PM
how can i tell which is the power wire for my speakers so that i can splice in the cross over? i think one is yellow the other like orange or something its for the left rear speaker on a 2000 navigator. i have a volt meter how can i use that thing

03-22-2007, 01:11 PM
bump haha need help

03-22-2007, 01:22 PM
speaker wires are yellow with a black stripe, and brown with a white stripe don't know which is + or -

03-22-2007, 01:22 PM
hook up ur + probe to the wire u wanna test and ground the other see which gives u a steady 12 or so dont do yellow its usually the constant crossover will remain on while car off if powered by it.

03-22-2007, 02:09 PM
This is the speaker wire which means it's getting more of a sine wave, music, and jumps between positive and negative. I would assume your Yellow with black stripe is your negative, but that's only guessing. It doesn't really matter in terms of hooking up and working. However, if backwards, your woofer will play out of phase with the others. Basically, when your other woofers move out, this one would move in. You'll generally lose low end bass if this is the case.

Realm of Excursion has some frequency tests available:
Another site:
Copying some info:
# Pink Noise Monaural - Pink noise is a form of noise that theoretically contains all frequencies. It should sound somewhat like rain on a rooftop. Pink noise is defined as having equal energy per octave and it is an important signal for loudspeaker testing if you have speaker measurement equipment. In this example, if your speakers are in phase, the sound should appear to come from the middle of the monitor.

# Pink Noise with Reversed Polarity - This is the same sound as above, but recorded with its polarity reversed. Here the sound should appear to come from the left and right speakers individually, or beyond the outside boundaries of the speakers. If it sounds like this noise is coming from the center of your monitor then your speakers are wired incorrectly. To correct this problem you will need to switch the positive and negative wires at there terminals on ONE speaker only and it would not matter which one you change.

If you find it to be out of phase, then simply swap the + and - wire around. If all speakers are out of phase, it's the same as if all were in phase.

03-22-2007, 02:35 PM
Left Front (+) White/Red
Left Front (-) Brown
Right Front (+) Green
Right Front (-) White/Orange
Rear Speakers 6" x 8" Rear Doors
Left Rear (+) Light Blue/Black
Left Rear (-) Yellow
Right Rear (+) Purple/White
Right Rear (-) Light Blue

03-22-2007, 03:13 PM
Wow, that's ****ed up. In my chevy, the pos. and neg. are the same color, but the neg. has a black stripe down the middle. FOMOCO needs to color-coordinate their stuff.

03-22-2007, 03:17 PM
Wow, that's ****ed up. In my chevy, the pos. and neg. are the same color, but the neg. has a black stripe down the middle. FOMOCO needs to color-coordinate their stuff.

My friend's suzuki has green & light green. My civic has brown & orange. My Explorer had 2 different colors.

I've yet to come in contact with a car that only has a black line difference b/t wires.

03-22-2007, 03:20 PM
Kind of a stupid move by the manufacturers. It'd be so much simpler and I highly doubt it would increase cost at all.

03-22-2007, 05:43 PM
yea it should be standardized i used my multimeter and both came up as 5.6 haha so i just tried it both ways and it sounded better having the black/yellow as - so i did it that way....oh well