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Old 05-27-2017, 10:32 AM   #1
eglinton
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Replacing front speakers

Hi. Im replacing the front speakers in my car. I have searced for the wiring diagram and colours but none match my car. My car has the mids in the door and tweeters up by the mirrors. Im not sure what wires are positive and negative. The tweeter wires are green and green and black. The right mid is blue and white with blue and brown. The left is blue and red with blue and brown. The wires from the tweeters plug in with the speaker plugs. So can i solder these wires together for the new speakers as they match up in the old speaker the green and black matches up to the blue and red and blue and white. Also which one is negative. From what i have found it seems that the brown is negative. Can someone please confirm.
Thanks

Last edited by eglinton; 05-27-2017 at 10:34 AM.
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Old 05-28-2017, 11:47 PM   #2
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I can't speak for the tweeters, but for the mid-bass speakers, if it's like my car was and like I suspect the standard is, the ones with the brown stripe are usually the negative wires.

Someone with more knowledge can confirm/deny this for you, but that's what my car was like. All negative wires had brown in them.
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Old 05-29-2017, 12:35 AM   #3
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Quote:
Originally Posted by eglinton View Post
Hi. Im replacing the front speakers in my car. I have searced for the wiring diagram and colours but none match my car. My car has the mids in the door and tweeters up by the mirrors. Im not sure what wires are positive and negative. The tweeter wires are green and green and black. The right mid is blue and white with blue and brown. The left is blue and red with blue and brown. The wires from the tweeters plug in with the speaker plugs. So can i solder these wires together for the new speakers as they match up in the old speaker the green and black matches up to the blue and red and blue and white. Also which one is negative. From what i have found it seems that the brown is negative. Can someone please confirm.
Thanks
This is for Harmon Kardon.
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Old 05-29-2017, 12:38 AM   #4
eglinton
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Thanks for the info guys. Baders i had already looked at that and the speaker colours do not match my car. My car has no amp and is a European model.
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Old 05-29-2017, 12:47 AM   #5
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OK wasn't sure what you had. Failing a diagram, you can do a polarity test using a 9v battery and multimeter to ascertain polarity. Speakers don't care about positive and negative, as long as they all have the same polarity.
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Old 05-29-2017, 01:07 AM   #6
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OK wasn't sure what you had. Failing a diagram, you can do a polarity test using a 9v battery and multimeter to ascertain polarity. Speakers don't care about positive and negative, as long as they all have the same polarity.
This approach with 9v battery can blow tweeters btw

Last edited by nealfromnz; 05-29-2017 at 01:08 AM.
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Old 05-29-2017, 02:10 AM   #7
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Hi nealfromnz. Any idea how i can test. Im quite sure brown is negative but the wires from the tweeters the black does not gonto the brown. This is what is misleading so the black from the tweeters go to one and the brown from the stereo go to the other
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Old 05-29-2017, 03:35 AM   #8
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What year model is your 318 ? Go here for the appropriate Electrical Troubleshooting Manual; http://wedophones.com/Manuals/BMW/
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Old 05-29-2017, 03:40 AM   #9
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Thanks for that. Yes it is a 318.
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Old 05-29-2017, 11:35 AM   #10
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Replacing front speakers

Typically the wire with the brown stripe is the negative wire.

Last edited by markusmarkus; 05-29-2017 at 11:36 AM.
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Old 05-30-2017, 05:21 AM   #11
baders
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Thanks for that. Yes it is a 318.
If you put details of your car in your sig it is helpful to those that wish to help you
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Old 05-30-2017, 07:06 AM   #12
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Hi baders. I think i have updated my car details. I thought i had done this but i must have missed it. Let me know if it shows up. Thanks
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Old 05-30-2017, 07:07 AM   #13
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Hi nealfromnz. Any idea how i can test. Im quite sure brown is negative but the wires from the tweeters the black does not gonto the brown. This is what is misleading so the black from the tweeters go to one and the brown from the stereo go to the other
WDS is a system that gives wiring diagrams for older BMWs such as e46s. You put in your model like 318i and then you can find wiring diagrams for every element of your car including door wiring. WDS needs java and an adobe plug in on your web browser.

Failing that. The speakers will have either a red dot or a + symbol on the positive speaker terminal so just trace wire from speaker to plug.

Another option is to download an audio app for your mobile such as ones from Jl audio or audio control which uses a recording which you play and measure with your phone mic. This will tell you if the speakers are connected the right way around.


Otherwise, I do have a copy of WDS on an old pc here and can look up the wiring diagram tomorrow night ( didn't get a chance today )

Btw people are most likely correct on the brown stripe being negative on wiring.
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Old 05-31-2017, 12:41 AM   #14
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Hi baders. I think i have updated my car details. I thought i had done this but i must have missed it. Let me know if it shows up. Thanks
Year man, what year ?
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Old 05-31-2017, 12:49 AM   #15
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Hi baders. The year of my car is a 2002. I have put the year in my car details i gave just looked and its says 2002 bmw 318i
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Old 06-01-2017, 09:53 AM   #16
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Hi nealfromnz. Did you manage to look at the wiring diagrams
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Old 06-04-2017, 12:55 AM   #17
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From WDS assuming yours is a 2002 318 with 6 speakers
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Old 09-20-2017, 02:39 PM   #18
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Well what do you know, just what I was looking for too. What brand did you use for your speakers?
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Old 09-21-2017, 10:02 AM   #19
eglinton
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Hi. I used some sony speakers. Cant remember the model number. They are 3 way speakers 6.5 inch. I had to make some plates and packers but was a relatively easy install.
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