Mr12volt wired connection / charging?....

OK, so an update....

Proof of concept is proven! :thumbsup: :driving:

Temporary connections were made to both the Mr12volt box and the cigar lighter socket wiring. Powered car on and phone detects proper charging and Mr12volt also sees phone and connects fully.

So now I've just got to get the best location to mount the new socket, unfortunately these sockets require a fair amount of space behind them so I've got to be careful .
 
Update no/2

Well not only a "Proof of Concept" but an actual fully working and installed version :thumbsup:

So slight changes to the original idea, I'm still using the OEM powered USB-C socket but now that's hidden in favour of a more subtle outlet. The only issue I've found is that you have to have the engine running in order for the Android Auto to work, not just pressing the Start button. Strange but then i don't sit there listening to music I'm normally driving so that's not an issue.

I'll take some photos of my setup in the morning and post them up. But in the meantime I'm very chuffed :driving:
 
I have one of these inside the centre arm rest 12v socket.

It’s USB A + C

Works well and charges fast.
 

Attachments

  • IMG_5102.jpeg
    IMG_5102.jpeg
    283.3 KB · Views: 6
I have one of these inside the centre arm rest 12v socket.

It’s USB A + C

Works well and charges fast.
Arr, BUT!!
I have one of those, that's not the point here, my reason was simple, let me explain....

OK , so you have a smart phone and you want to connect to Apple CarPlay or Android Auto (depending on your phone type), you can connect wirelessly, but you want to keep your phone charged on a longer trip, so you get a wireless charger (magsafe hanging off the dash somewhere). Now both of these create a lot of heat in the phone, combine that with a hot summers day and your going to have problems. I've had this before and from that experience my phone has shut down due to the heat. So to combat this as much as possible you need a wired connection for both. Now all mmi boxes come with a flying USB lead to perform the job of both data connection and power, but all of these don't really charge the phone they just keep them charged as they just don't give enough power.
So this is where this comes in, it combines the USB connection to the mmi box and a separate, proper, power charging supply. This wont produce unwanted heat in the phone even on a hot day. It's a neat installation as well, without excessive cable all over the place (photos to come).
 
OK so I've got some photos.
I replaced my original 3D printed cup holder with the later version that has the 12v socket hole. In the hole, as can clearly been seen in the photos, is a small USB-C socket (this had to be glued in place as its a little bit smaller than the hole). This then runs to the G-Series USB-C powered socket, which in turn get its power from the 12v socket circuit, and also has a FAKRA plug coming from the Mr12volt USB lead. All neatly hidden away.
I've also got a modified cup holder phone mount, which has been sliced and glued back in place 90° so that the phone is out of the way of my hand when putting it in reverse! This also has a Magsafe mount for ease. Then I've got a coiled USB-C to USB-C lead just so it's not in the way also.
 

Attachments

  • 20260411_191226.jpg
    20260411_191226.jpg
    408.8 KB · Views: 6
  • 20260411_191209.jpg
    20260411_191209.jpg
    530.5 KB · Views: 7
  • 20260411_191255.jpg
    20260411_191255.jpg
    546.5 KB · Views: 7
  • 20260411_191309.jpg
    20260411_191309.jpg
    428.2 KB · Views: 7
  • 20260411_191340.jpg
    20260411_191340.jpg
    396.9 KB · Views: 7
  • 20260411_191408.jpg
    20260411_191408.jpg
    452.4 KB · Views: 6
Back
Top Bottom