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X3 E83 (2004 - 2010)
Talk about the E83 BMW X3 in this forum!

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Old 10-09-2011, 07:03 PM
crenninger crenninger is offline
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Location: Redwood City - CA
Join Date: Aug 2011
Posts: 59
Mein Auto: '04 X3 3.0i
All Done, Thank you everldr for the suggestion, improvement is dramatic, 100% worth the $92 invested. Ghosh... I almost don;t regret my Limited 4runner with JBL system (10 speakers) that was an awesome sounds for me,

the X3 with Alpine SPS410 is close to it... I can live with it.

Regarding the wiring, my car had the same color on each side for front and back
using the info below here is what I found:

left and right have the same color code.

Front : Yellow-Red + Yellow/Brown -
Rear: Yellow-Black + Yellow/Brown -

Thanks all for the help! now I can drive with good music until I upgrade my head unit for the Kenwood KIV-BT901 which will give me bluetooth, MP3 and backup camera in a 1DIn Unit.

probably to be done in ~6mths.
I'll update the post once I do it.

Originally Posted by adri View Post
Hi Crenninger,

My Car is a Right Hand drive (UK/Australian version) and these are the colors I have found so far

Front Right: Yellow-Red + Yellow/Brown -
Front Left: Blue-Red + Blue/Brown -

Rear Right: Yellow-Black + Yellow/Brown -
Rear Left: Yellow-Purple + Yellow/Grey -

I have a feeling that in the Left Hand Drive(USA) versions the Left and Right side colors are inverted!

I yet do not know what colors I will find in the Subs under the chairs, even though they work with front fader. I also do not know if these would have been crossovered at all by cutting any high frequencies.

Hope this helps,
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