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BMW 3-Series (E90 E92) Forum
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Radio Wiring: which is the ignition?
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| 02-21-2014, 05:03 PM | #1 |
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Colonel
 126
Rep 2,022
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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 |
| 02-22-2014, 12:58 AM | #3 |
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Captain
 
33
Rep 650
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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, 07:22 AM | #4 | |
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First Lieutenant
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remote wire
Quote:
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