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3-Series (E46, E90) Chat relating to the BMW 3-Series from 1999 to Current. Models include: BMW 316i, BMW 318i, BMW 318Ci, BMW 320i, BMW 323i, BMW 325i, BMW 330i, BMW 328 Ci, BMW 328i, BMW 325i/xi, BMW 330Ci, BMW 320d, BMW 330d, BMW 335d.

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Old 08-20-2012, 09:27 PM   #1 (permalink)
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Question Shock changeover = No speaker sound?

My car had been on stands for 3 months while doing shock and spring changeover (long story, obviously), And now none of my speakers work!

I had installed an aftermarket head unit with amp and sub and it has worked flawlessly for almost 2 years!

Whats weird is my Subs still work, but no sound whatsoever from any of the speakers...

I have checked fuses 7 & 41 for RADIO/ NAVIGATION.

Also, if it makes a difference, my battery died so i had to jump it to get my car started.


Any thoughts??
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Old 08-21-2012, 04:34 PM   #2 (permalink)
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When you boosted the car did it ask you for the Radio Code?

Never done it for an E46, but when removing the shocks in an E36 you need to remove the speakers as their in the way of the carpeting covering the shock tower. When you remove the speaker their is a tiny connector that plugs into the speaker. If this is not properly connected you wont have sound. Remove the speaker and check this connector and ensure it is properly connected.

For the rest, you should use a voltmeter to ensure their is power throughout the system. If theirs no power, then finding the power wire and tracing it back should be easy.
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Old 08-21-2012, 06:47 PM   #3 (permalink)
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It did not ask me for the radio code because i have an aftermarket head unit (i have a SECURITY SET options, but have not used it)

In the e46 i dont think i saw any wires minus the brake pad sensor. This makes no sense! i had to press super hard on the brake, and my connection if i remember correctly goes right over, or under the steering column? Maybe i severed it?

I have power to the radio, Tuner, USB, and subs and amp work fine


Its not even possible to unplug all the speaker connectors during this

I did find one 2-wire connector by the rear shock mount, but im almost positive it was already disconnected. does anyone know waht this does? it is on the battery side.
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Old 08-22-2012, 04:37 PM   #4 (permalink)
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The connector I am refering to is inside the trunk but above the shock mounts. Where the speakers are. Odds are the wire you found may possibly be the speaker one. Remove the speaker and find out.
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Old 08-23-2012, 04:39 PM   #5 (permalink)
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Would this one connector stop all speakers from working? i can get a picture if it would help ?
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Old 08-24-2012, 02:52 PM   #6 (permalink)
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It could. We disconnected the speakers and the 6 Disc CD changer when removing my rear shocks and the whole audio system wouldnt function.

I dont have a specific picture, but when you remove the rear speakers you should see it.
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Old 08-25-2012, 12:16 PM   #7 (permalink)
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I have found the factory amp ( which i originally thought was the ECU, not the case) it even says AMP ALPINE on it -_-.
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Old 08-26-2012, 09:22 AM   #8 (permalink)
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Update: i checked Voltage on the amp and the HU. here is what i found

The built in amp pwer wire is 12v when off, when i turn it on, it drops to around 5v.
All earths have a resistance of .8 or less
I cant rememebr for sure right now but i think the twisted paris were putting out 5v.
The remote turn on wire is putting out 5v.

The headunits remote turn on wire is also putting out 5v, from the head unit, and also from the back of the OEM harness
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Old 04-01-2013, 05:15 AM   #9 (permalink)
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Quote:
Originally Posted by Bombay Badboy View Post
My car had been on stands for 3 months while doing shock and spring changeover (long story, obviously), And now none of my speakers work!

I had installed an aftermarket head unit with amp and sub and it has worked flawlessly for almost 2 years!

Whats weird is my Subs still work, but no sound whatsoever from any of the speakers...

I have checked fuses 7 & 41 for RADIO/ NAVIGATION.

Also, if it makes a difference, my battery died so i had to jump it to get my car started.


Any thoughts??
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It happened with me once but I was not able to find the solution and need to ask mechanic.So what was the problem.
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Old 04-02-2013, 01:43 AM   #10 (permalink)
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Originally Posted by Unttold View Post
It happened with me once but I was not able to find the solution and need to ask buy speakers mechanic.So what was the problem.
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Old 04-03-2013, 09:01 AM   #11 (permalink)
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Really Unttold??? Your going to quote your own message and throw in a spam link as well? You better knock that off before you get banned. If your just here to spam you should leave now as its not tolerated here.
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