Question about 1989 BMW 5 Series
Trying to hook up aftermarket radio in 89420sel mercedes benz need to know what color are the wires on the speaker
Get a AA battery, solder a wire ti each end. This is called a "popper"
Hold one wire of the AA on one speaker wire. Tap the other AA wire to the other speaker wire. The speaker will make a "popping" noise. Mark the wire as to the location, and so on. To determine polarity (- or +) you must be able to see the speaker. If it jumps UP when you "pop" it, look at the polarity of the AA battery.
That is the proper polarity of the wires. If it sucks IN, when you "pop" it........you're backwards. If this is over you're head......$30 @ a stereo store and it's over!.....Have fun.
Posted on May 27, 2009
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Posted on Jan 02, 2017
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