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DIY: Do It Yourself
Post here to share or improve your wrench turning skills! All BMW E46 DIY tips, tales, and projects discussed inside. Learn to work on your car and know the right BMW parts you will need!

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Old 03-14-2011, 12:33 AM   #1
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Join Date: Jan 2011
Location: Melbourne
Posts: 32
My Ride: E46 323i
Lightbulb **E46 DYI: How to make Cigarette Lighter turn ON/OFF with Accessories in 5 MINS!**

This mod is regarding the annoying issue of having a constant power source running to the cigarette lighter. If like me you have accesories such as GPS or an IPOD transmitter in it, it can be very annoying to be constantly plugging your items in and out to save the battery going flat. So today i finally got the time to do something about it!

Ok this mod is super easy and took me approx 5 minutes to do!

First you'll have to remove FUSE# 7 (Orange) for the Radio and Fuse# 47 (Blue) for the cigarette lighter
In this picture the fuses have already been pulled out. Each pin for the fuse has polarity.

Top is NEGATIVE (WHITE) & bottom is POSITVE (RED)

What were going to do is join the Negative from Fuse# 7 and join it with the Negative with fuse# 47.

But before we do were going to have to remove the fuse filament in fuse #47 OR just use a blown fuse.

Then with a strip of wire preferably one with a fuse doesnt really matter we'll join the negative pole of fuse 7 to Negative pole of 47 with the use of a soldering gun.
I would really refrain from just wrapping the wire around the pole incase a strip of the wire comes lose and makes contact with the opposite pole.

Finally put back the fuses making sure that the poles with the soldered wire goes to the pin facing up circled in BLUE.

And thats all folks!
Your cigarette lighter will now turn on and off with the switch of the accessories position.



Last edited by MRjayr; 03-14-2011 at 12:35 AM.
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e46 cigarette lighter on

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