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BMW 3-Series and 4-Series Forum (F30 / F32) | F30POST > Technical Forums > Navigation, iDrive, Audio, Video, Bluetooth, Phone, Cameras, Electronics > Installing a sub with stock BMW "STEREO" system
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      09-15-2015, 08:35 PM   #23
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      09-17-2015, 09:05 PM   #24
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Quote:
Originally Posted by qamvti View Post
Will the speaker wire colours been the same for the f34 as I am trying to do the same thing. But I want to use the front speakers. What's the colour code for these thanks in advanced. Searched but cannot find the info I have no amps or subs under the seats.
If you look under your seats you should see this...



I do not see anything in the ETK that states that in the UK there are no woofers under the seats in a F34 335d.

Regardless, there is no bass in the rear speakers in the Stereo system. So to install a sub in a Stereo system the front outputs of the iDrive must be tapped. And again, the easiest way to tap those outputs is at the woofers. Removing the iDrive is a risk for scratches, broken wires and connectors and longer wires to hide.

For the last 10 years BMW uses pin 2 as negative and pin 3 as positive at the woofer connector. Numbers are molded in the connector. No need to identify colors.
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      09-22-2015, 09:40 PM   #25
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Had a look again think the sub-woofer maybe under the seat.
Thanks you very much Techinc

Last edited by qamvti; 09-24-2015 at 09:44 PM..
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      07-14-2019, 10:31 PM   #26
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Full range signal from under seat woofer ? What's the best solution for the center rear seat so bass can flow into the cabin
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      08-30-2019, 10:15 PM   #27
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Please I need some help

Instead of running the cables to the audio head unit
Can I get the wires from the trunk amp ? If so which one will be the cable ?
Y saw that the original subwoofer that comes with the car has blue/red wire and blue/brow can I use that cable with a 2 channel rca converter ?
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      08-31-2019, 12:38 AM   #28
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Quote:
Originally Posted by gilbepichi@gmail.com View Post
Please I need some help

Instead of running the cables to the audio head unit
Can I get the wires from the trunk amp ? If so which one will be the cable ?
Y saw that the original subwoofer that comes with the car has blue/red wire and blue/brow can I use that cable with a 2 channel rca converter ?
Yes. This works for me.
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      08-31-2019, 12:40 AM   #29
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https://f30.bimmerpost.com/forums/sh...d.php?t=729073
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      08-31-2019, 08:03 AM   #30
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You may find this thread useful:
https://f30.bimmerpost.com/forums/sh....php?t=1475424
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