Quick question about aftermarket HU wiring

Kapnos · 03-07-2012, 11:59 AM

Hey Guys,
My recent Z120bt install went great in my e90 but I'm having an issue with the switched power. The stock head unit will stay on for a period after the car is turned off or until the door is opened. I would like to get that same functionality from the new HU. At the moment, as soon as the car turns off, the HU turns off. I tapped the cig lighter for ignition power and ran constant from the battery.

Any clues as to what power to tap to retain the functionality of the head unit not automatically turning off when the engine does?

Thanks for all your help in advance!

taibanl · 03-07-2012, 12:48 PM

Did you install oem hu in trunk?

Kapnos · 03-07-2012, 01:04 PM

Yes. No errors, chimes work etc.

taibanl · 03-07-2012, 03:06 PM

Pin 13 from oem hu

Kapnos · 03-08-2012, 06:07 PM

Thanks,
I will hopefully try within the week and post results!

mob17 · 03-09-2012, 07:23 PM

any luck?

Kapnos · 03-10-2012, 05:59 PM

Haven't had time to pull it all back out yet unfortunately. Check back next Wednesday through Friday... I have those days off

Kapnos · 03-15-2012, 01:18 PM

Pin 13 from the oem HU to the Pioneer's Ignition lead results in the Pioneer HU coming on when the car is unlocked but restarting when the car is started. It also does not turn off when the key is pulled. It instead waits until the car goes to sleep.

Technic · 03-15-2012, 02:05 PM

Pin 13 is the OEM remote turn on. It is not designed to be the 12V source of anything.

Kapnos · 03-15-2012, 02:12 PM

So where would you suggest I grab 12v switched/acc that will turn off when the oem hu turns off instead off when the engine turns off?

03-07-2012, 11:59 AM	#1
Kapnos New Member 0 Rep 9 Posts Drives: 2008 JB 328i Join Date: May 2011 Location: Atlanta, GA iTrader: (0)	Quick question about aftermarket HU wiring Hey Guys, My recent Z120bt install went great in my e90 but I'm having an issue with the switched power. The stock head unit will stay on for a period after the car is turned off or until the door is opened. I would like to get that same functionality from the new HU. At the moment, as soon as the car turns off, the HU turns off. I tapped the cig lighter for ignition power and ran constant from the battery. Any clues as to what power to tap to retain the functionality of the head unit not automatically turning off when the engine does? Thanks for all your help in advance!
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03-07-2012, 12:48 PM	#2
taibanl Brigadier General 281 Rep 4,121 Posts Drives: BMW Join Date: Sep 2010 Location: NA iTrader: (4)	Did you install oem hu in trunk?
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03-07-2012, 01:04 PM	#3
Kapnos New Member 0 Rep 9 Posts Drives: 2008 JB 328i Join Date: May 2011 Location: Atlanta, GA iTrader: (0)	Yes. No errors, chimes work etc.
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03-07-2012, 03:06 PM	#4
taibanl Brigadier General 281 Rep 4,121 Posts Drives: BMW Join Date: Sep 2010 Location: NA iTrader: (4)	Pin 13 from oem hu
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03-08-2012, 06:07 PM	#5
Kapnos New Member 0 Rep 9 Posts Drives: 2008 JB 328i Join Date: May 2011 Location: Atlanta, GA iTrader: (0)	Thanks, I will hopefully try within the week and post results!
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03-09-2012, 07:23 PM	#6
mob17 Major General 397 Rep 5,613 Posts Drives: E92 335D Join Date: Mar 2012 Location: East Midlands, UK iTrader: (5)	any luck?
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03-10-2012, 05:59 PM	#7
Kapnos New Member 0 Rep 9 Posts Drives: 2008 JB 328i Join Date: May 2011 Location: Atlanta, GA iTrader: (0)	Haven't had time to pull it all back out yet unfortunately. Check back next Wednesday through Friday... I have those days off
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03-15-2012, 01:18 PM	#8
Kapnos New Member 0 Rep 9 Posts Drives: 2008 JB 328i Join Date: May 2011 Location: Atlanta, GA iTrader: (0)	Pin 13 from the oem HU to the Pioneer's Ignition lead results in the Pioneer HU coming on when the car is unlocked but restarting when the car is started. It also does not turn off when the key is pulled. It instead waits until the car goes to sleep. Last edited by Kapnos; 03-15-2012 at 01:43 PM..
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03-15-2012, 02:05 PM	#9
Technic Lieutenant General 2472 Rep 13,132 Posts Drives: 2025 Countryman S, 2024 i4 M50 Join Date: Apr 2005 Location: Florida iTrader: (18)	Pin 13 is the OEM remote turn on. It is not designed to be the 12V source of anything.
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03-15-2012, 02:12 PM	#10
Kapnos New Member 0 Rep 9 Posts Drives: 2008 JB 328i Join Date: May 2011 Location: Atlanta, GA iTrader: (0)	So where would you suggest I grab 12v switched/acc that will turn off when the oem hu turns off instead off when the engine turns off?
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