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E36/7 Z3 (1996-2002)
E36/7 Z3 Roadster, Z3 coupe, Z3 M Roadster and Z3 M Coupe talk with our gurus here.

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  #1  
Old 07-26-2003, 06:36 AM
mrnvgtr mrnvgtr is offline
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Mein Auto: e30325is;2002;911sc;ex35
Unswitched Power Source

I need to tap into a power source connected directly to the battery (unswitched I believe). The area I'm working in is directly in front of the shifter underneath the console. Can anyone tell me the nearest source to tap into. Someone suggested the power going to the cig lighter. I never had the lighter, but the power that goes into the socket is there. Would that work?

Last edited by mrnvgtr; 07-26-2003 at 06:56 AM.
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  #2  
Old 07-26-2003, 07:17 AM
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bob lindquist bob lindquist is offline
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fuse

Quote:
Originally Posted by mrnvgtr
I need to tap into a power source connected directly to the battery (unswitched I believe). The area I'm working in is directly in front of the shifter underneath the console. Can anyone tell me the nearest source to tap into. Someone suggested the power going to the cig lighter. I never had the lighter, but the power that goes into the socket is there. Would that work?
if you use this line for a small device you should use an inline fuse of the size appropriate for the device as the lighter has a large value fuse that won't protect the device correctly.

The lighter should be power on always. (unswitched)
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  #3  
Old 07-26-2003, 07:34 AM
mrnvgtr mrnvgtr is offline
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These are relays for the ignition system by the way. Is that lighter still the easiest source that will work? I'd love to use that lighter wire, but just want to be absolutely sure before I try. I have to tap three different relays into it. "Do it once, do it right"
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  #4  
Old 07-26-2003, 09:04 AM
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bob lindquist bob lindquist is offline
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SAM's?

Quote:
Originally Posted by mrnvgtr
These are relays for the ignition system by the way. Is that lighter still the easiest source that will work? I'd love to use that lighter wire, but just want to be absolutely sure before I try. I have to tap three different relays into it. "Do it once, do it right"
Three ingition relays? Are you launching SAM's?


I am at work and don't have TIS disc here. If the relays are under the hood there is the connection for battery jumping over on the passenger side. That would be the heaviest connection in the front of the car along with the starter. I can't imagine a heavier (amps) line that the lighter inside the car. Hang on someone else will grab this thread soon.
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2000 Imola Red M Coupe

Dinan suspension, M rotors /Axxis pads
Eurosport Cam Kit 1, touch lane change
Zaino polish, Beach Sand
Garys mirror adapter, S54 Oil Cooler
seat tilt coupling nuts, spare tire

"life's to short to drink cheap beer"


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  #5  
Old 07-26-2003, 11:45 AM
mrnvgtr mrnvgtr is offline
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Thanks for your help. I just got back in from trying it out on the lighter socket wire. It works fine.
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  #6  
Old 07-26-2003, 02:26 PM
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Randy Forbes Randy Forbes is offline
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Any solid red wire is a fulltime source of +12VDC
They're usually of fairly heavy gauge (so an appropriate sized fuse is recommended) and found throughout the chassis.
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