Where to hook up ignition wire?

OG Style · 09-01-2018, 08:29 AM

I'm changing the radio in my 07 328i (CD73. I bought a harness and wired it all up but there is no ignition wire one my factory harness. Where is a good play to run a wire from?

Thanks)

Ali-E90 · 09-01-2018, 09:06 AM

You can tap into cigarette lighter, most do that.

I tapped a wire in driver footwell (don't remember which, might have been purple) which goes live on key insert instead of car in the "on" state.

OG Style · 09-01-2018, 04:01 PM

I was planing on using the lighter. I wanted to see if there was better spots. Thanks

OG Style · 09-01-2018, 04:04 PM

Did you have to run a new 12v constant?

Ali-E90 · 09-03-2018, 12:23 AM

Quote:

Originally Posted by OG Style

Did you have to run a new 12v constant?

Yes, the "constant" that originally powered the harness would eventually go to sleep after 30 mins or so.

09-01-2018, 08:29 AM	#1
OG Style Lieutenant 51 Rep 431 Posts Drives: 2011 328XI Join Date: Aug 2018 Location: USA iTrader: (0)	Where to hook up ignition wire? I'm changing the radio in my 07 328i (CD73. I bought a harness and wired it all up but there is no ignition wire one my factory harness. Where is a good play to run a wire from? Thanks)
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09-01-2018, 09:06 AM	#2
Ali-E90 Colonel 386 Rep 2,375 Posts Drives: 2007 E90 323i (Cdn) Join Date: May 2013 Location: Toronto, Canada iTrader: (3) Garage List 2008 BMW M3 [8.00] 2007 BMW 323i [8.50]	You can tap into cigarette lighter, most do that. I tapped a wire in driver footwell (don't remember which, might have been purple) which goes live on key insert instead of car in the "on" state. __________________ Check out my Mod Thread Here
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09-01-2018, 04:01 PM	#3
OG Style Lieutenant 51 Rep 431 Posts Drives: 2011 328XI Join Date: Aug 2018 Location: USA iTrader: (0)	I was planing on using the lighter. I wanted to see if there was better spots. Thanks
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09-01-2018, 04:04 PM	#4
OG Style Lieutenant 51 Rep 431 Posts Drives: 2011 328XI Join Date: Aug 2018 Location: USA iTrader: (0)	Did you have to run a new 12v constant?
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