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Old 01-21-2017, 11:35 AM
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PropellerHead PropellerHead is offline
Join Date: Dec 2006
Location: At the wheel of a Bimmer
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Originally Posted by semcoinc View Post
Note that the front door tweeter has a green with black stripe for the POSITIVE and is an 8ohm!

Negative terminal of JL C2-600CW lines up with negative of vehicle mount. I confirmed negative of factory speaker since they were not marked by using the AA battery trick. Connect battery to speaker terminals and when the speaker pushes out you look at battery for which is positive and which wire is negative. If speaker pulls in, you reverse the battery to get it to push out and you have the answer on which is positive and which is negative..
Just for those who may not know, In the (gulp) 30 YEARS I have been screwing around with BMW wiring, negative is always brown. Brown wire, or any color wire with a brown stripe.

I do like the battery test. Never heard of that. Never had to use it, but nice to confirm if you're unsure.
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