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BMW 3-Series (E90 E92) Forum > BMW E90/E92/E93 3-series General Forums > Regional Forums > UK > UK Technical Forum > Radio Wiring: which is the ignition?



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      02-21-2014, 06:03 PM   #1
jammy78
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Radio Wiring: which is the ignition?

Hi,

Has anyone seen a wiring diagram for back of the radio?

I need to know which is the ignition wire as I'm adding a relay?

Cheers
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      02-21-2014, 06:08 PM   #2
jammy78
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Is it pin 13 (antenna - remote turn on)?

Last edited by jammy78; 02-21-2014 at 06:24 PM.
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      02-22-2014, 01:58 AM   #3
Dan-danGT
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I have not seen it personally but I will take a stab in the dark. Most modern radios now have a permanent live and earths followed by CAN bus wiring. If it's like this the radio is woken by the CAN bus when ignition/ key is present.

Basicly like a ignition feed but it's a data line that turns it on. If that make sense
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      02-22-2014, 08:22 AM   #4
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remote wire

Quote:
Originally Posted by jammy78 View Post
Is it pin 13 (antenna - remote turn on)?
http://www.e90post.com/forums/showthread.php?t=260265
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