I just got my 2015 M3. It has one cigarette lighter in the center console. I need two at the dash for my Radar and cellphone mount in the window. Has anyone installed extra outlets at the dash? Where did you put them and where did you tap the power from? This is my 1st car without them at the dash.

 

Don't they have branched plug-ins for 12v power? Seems I had one many years ago when cars only came with just a single cigarette lighter plug. You don't need much power from any of the gadgets you're mentioning. A branch would do fine.

Ralph

 

You can find splitters for the accessories port, but they are quite bulky. Does your radar work off standered USB power? If so, maybe you can just work with your USB port?

When I got my M3 2016 I have a dash cam and the port in the arm rest was just not usable, nore ideal. So i picked up a long usb cable from monoprice for a couple bucks and everything works off the usb port up front. Bonus, it shuts off with the car.

 

It's not that I can't use a splitter, I really don't want to have USB and power cables exiting the center console all the way to the window. That's too messy (for me) and gets in the way. Right where the CT player is located, thinking I'll somehow hard wire in a low profile multi outlet permanently mounted.