Mr12Volt - The solution for Carplay and Android Auto integration
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Joined: Oct 2022
Posts: 840
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From: Hatboro PA
Your welcome to use our website acsbyroman.com
If you have a PCM3.1 (cayenne 2010-2016) this is the kit you need
https://acsbyroman.com/product/porsc...st-pcm-3-1-mm/
If you have a PCM3.1 (cayenne 2010-2016) this is the kit you need
https://acsbyroman.com/product/porsc...st-pcm-3-1-mm/
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Modernize your P-Car with Mr12Volt Apple Carplay / Android Auto. Superior audio quality, features, and support.
Our website is now LIVE! please visit us at https://ACSByRoman.com/Mr12Volt
Hard drive cloning and PCM BOOT LOOP repair
FREE INSTALL KIT AND CAR CHARGER WHILE SUPPLIES LAST!
On site install is available in the Philadelphia PA area as is Global shipping!
CLICK HERE JOIN OUR FACEBOOK GROUP
Torque.Acs@gmail.com - (267) 317-8229
Our website is now LIVE! please visit us at https://ACSByRoman.com/Mr12Volt
Hard drive cloning and PCM BOOT LOOP repair
FREE INSTALL KIT AND CAR CHARGER WHILE SUPPLIES LAST!
On site install is available in the Philadelphia PA area as is Global shipping!
CLICK HERE JOIN OUR FACEBOOK GROUP
Torque.Acs@gmail.com - (267) 317-8229
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Joined: Apr 2025
Posts: 12
Likes: 2
Is it okay to drive around without my headunit installed? I pulled it out to put in the mr12volt and I realized I didn't get all the parts so now im waiting for them to send it and I don't really want to put it back in and then pull it back out when the parts come in
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From: New England, MA
I drove around for about three weeks without mine, including to Porsche Parade two years ago.
I just put a handful of paperback books in the opening and nobody noticed.
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From: Hatboro PA
Track Day
Joined: Jul 2015
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Mr12Volt issue - no sound initially when start car
Just installed this. Working fairly well but having an issue where when I first get in the car and start up, apple music will play but don't output any sound. If shut down the car and restart it then works fine. Not sure what could be causing this...
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Joined: Nov 2017
Posts: 181
Likes: 48
From: Lisbon, Portugal
There are many reports all over of CarPlay failing after an iPhone upgrade or outdated hardware. Reset & reinstall did not work for me for the last 5 month.
IMHO, it's iOS updates and protocols on wifi and BT. So instead of going bug hunting again, I will try out the 12V system as I expect as least bump in audio quality with the Bose system... :-)
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Joined: Oct 2022
Posts: 840
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From: Hatboro PA
Nick from NMAutomotive is super helpful and has a better tuned product than the standard China CarPlay install for a PCM 3.1 first gen.
There are many reports all over of CarPlay failing after an iPhone upgrade or outdated hardware. Reset & reinstall did not work for me for the last 5 month.
IMHO, it's iOS updates and protocols on wifi and BT. So instead of going bug hunting again, I will try out the 12V system as I expect as least bump in audio quality with the Bose system... :-)
There are many reports all over of CarPlay failing after an iPhone upgrade or outdated hardware. Reset & reinstall did not work for me for the last 5 month.
IMHO, it's iOS updates and protocols on wifi and BT. So instead of going bug hunting again, I will try out the 12V system as I expect as least bump in audio quality with the Bose system... :-)
Track Day
Joined: Jul 2015
Posts: 17
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Think I figured this one out. I was connected via Bluetooth to the PCM, my phone might have been still connected to that. I removed that connection from my phone and the issue seems to be gone, will test out more going forward.
8th Gear
Joined: Jan 2025
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