only 1 cigarette/ power outlet - how to hardwire more?

[2MCHPWR]

i have a splitter with 3 outlets. how is the best way to hard wire it into get power?
when i plug it into the cig lighter, the fit isn't tight and it always dis-connects so i figure hardwiring is the way to go. but what is the best way to do this?
thanks!

[1996 328ti]

I recall someone adding an additional 12v receptacle in the center console.
I have my radar detector 12v adapter mounted below the window switches in the console.

[John Firestone]

I am adding a USB power port using the AUX IN/USB panel BMW uses in their current models. I just finished an overvoltage cutoff that will stop surges and transients from reaching the device drawing USB power.

[MINIz guy]

You can hardwire to the wires going to that 12v outlet.

[John Firestone]

The cellular telephone prewiring in a 1996 or later North American 318ti is a good place to get switched and unswitched power for electronics in the center console area. A connector shell and a couple, male 2.5 mm^2 amp contacts, and you're in like Flynn. As of last month, the shell was still available:

[John Firestone]

Originally Posted by 2MCHPWR

... when i plug it into the cig lighter, the fit isn't tight and it always dis-connects so i figure hardwiring is the way to go....

Have you tried turning the plug until it feels like it wants to hold?

Here is my first try at the overvoltage cutoff I mentioned yesterday, with its cigarette lighter socket hosting the black power adapter that will power my gizmos:



In the next picture, I have slightly twisted the USB power adapter counter-clockwise so that you can see one of its two side leaf springs:



Look along the right side of the plated lighter socket. Do you see how the socket finger grips the adapter's leaf spring? This is a German designed adapter plugging into a German made lighter socket. They fit like both follow a standard.

I can recommend the socket, BMW p/n 61 34 6 973 037, if you need a naked cigarette lighter socket. It is pretty compact, inexpensive (less than 3 euros / $4), bonds well to MMA adhesive, from all reports is durable, and comes from an OE supplier that has been refining automotive lighter sockets for generations.