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E28 (1982 - 1988)

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  #1  
Old 07-09-2011, 04:19 PM
Ataglance Ataglance is offline
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Location: Michigan
 
Join Date: Dec 2010
Posts: 34
Mein Auto: 1988 528
Installing Sony Stereo/CD player

I am trying to install this in an '88 528e. the red wire, violet/white radio is attached to the red wire on the radio itself. The brown wire is attached to the yellow wire. This is an odd combination because the brown is supposed to be ground?

This causes the old radio to light up but not the new radio.

Does anyone know which wires in the car to attach the red/yellow wires on the radio to?
Any help is greatly appreciated.
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  #2  
Old 08-10-2011, 08:10 AM
jimoreno jimoreno is offline
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Location: Parsippany, NJ
 
Join Date: Jul 2006
Posts: 487
Mein Auto: 2006 X3
Ok, here it goes from the ETM (do a search and download the one for your car is it is very helpful!):
1- red/white (yellow on factory radio) wire is hot at all times, however the best way to do this is to put two new wires through the firewall and connect them to the auxiliary fuse block just outside the main fuse box. One is hot at all times and the other is switched. By doing this your radio won't die every time you step on the brakes (fuse 5 has a lot of circuits on it).
2- gray/red (white on factory radio) is the input from the dashboard light switch.
3- purple/white (purple/gray on factory radio) is the switched power wire. See comment in number 1 above.
4- white is antenna on wire.

Do not reuse the speaker wires as it has a common ground! Install new speaker wire for all 4 speaker locations!
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1995 530i
1986 535i
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