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Has anyone done a CarPlay retrofit / Headunit replacement for 991.1

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Old 02-02-2024, 07:01 PM
  #1981  
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Originally Posted by Chuck245
@andy2111 Regarding #1965, I was hoping that this setting is related to amplification of the audio output because my HU is set to "None" and I do not have the audio hiss. But pure speculation, I do not have any hard evidence on this one and I cannot validate my theory because I do not have the hiss.
I think that the setting to control the digital output port is "Digital Output Type" in the DSP Settings screen. But again, best guess.
It's not amplification here. I2S is a serial bus interface used to transfer a digital audio data stream. I suspect that in that setting there are alternatives, such as SPI or TDM. Selecting the appropriate interface will depend on what equipment is sending the data, so I imagine that the designers of the unit have catered for various scenarios. You will also find these types of settings on streamers used for Tidal, Spotify, etc.

The other setting referred to earlier (None, Digital, Analog) is to select between an analog source and a digital source (I believe) although I don't know what 'None' would be for!
Old 02-02-2024, 07:13 PM
  #1982  
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Originally Posted by Chuck245
With credit given to posters in another forum, a few more codes that give access to factory settings. Explore at your own risks and please post anything useful/interesting you find.
0000122
99992
5555
Yeah, there are as many (or more) PIN codes as there are Android units. The unit in my Panamera uses two or three different codes in the same menu, depending on which 'factory' sub-menu you are trying to access. I saved this list from some place on the internet when I first installed that unit:
  • 110
  • 126
  • 162
  • 168
  • 518
  • 888 (Boot Logo)
  • 0000
  • 1234
  • 1314
  • 1464
  • 1617
  • 1912
  • 1983
  • 3234
  • 3366
  • 3368
  • 3506
  • 3711
  • 5678 (Boot Logo)
  • 5768
  • 5839
  • 6688
  • 7749 (Boot Logo)
  • 7788
  • 7890
  • 8086 – Launcher
  • 8317
  • 8861
  • 8888
  • 12345
  • 12356
  • 12580
  • 56789
  • 77049
  • 000000
  • 110126 (Boot Logo)
  • 111333
  • 121212
  • 123456
  • 190627
  • 667788
  • 888666
  • 888888
  • 15935700
  • 16176699
  • 66668888
  • m123456
PIN or Codes for EINCAR and others also try:
Dev options: 7890
Car Extra options: 123456

The common ones I have seen on a lot of units are 8888 and 123456. You can try inputting different codes in the Erisin-style HU and seeing if using a different number to 3368 takes you to different factory menus. NB - some of the menus can be dangerous and user caution is advised!
Old 02-02-2024, 09:27 PM
  #1983  
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@ZedZed Sorry, I was not very specific. By "this setting" in my first sentence on post #1776, I was referring to the "Power Amplifier Setting" and not to "Digital Output Type". Agree with you that "Digital Output Type" seems to be a way to select the actual digital interface for output. There is also a screen for digital input. Pictures below.
Regarding "Power Amplifier Setting", your explanation is as good as mine as it is not clear if we are talking about output or input and in both cases "None" purpose is a question mark. And it's not clear at all which selections are actually active in our units. A lot to figure out.



Old 02-03-2024, 06:48 AM
  #1984  
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Originally Posted by tsiemian
Did this ever work for anyone? I also had a light hissing noise if the volume is on.
I'm waiting for a ground loop isolator to arrive and then I'll make up the harness as described above, test it on my Zohong branded HU and report back

I'm hoping when I get my erisin unit if I have the hiss I will get the software update that has worked as described on another forum

With luck we will have a software fix for erisin owners and a harness adapter for non Bose non erisin owners

Last edited by andy2111; 02-03-2024 at 06:54 AM.
Old 02-03-2024, 07:31 AM
  #1985  
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Originally Posted by Chuck245
@ZedZed Sorry, I was not very specific. By "this setting" in my first sentence on post #1776, I was referring to the "Power Amplifier Setting" and not to "Digital Output Type". Agree with you that "Digital Output Type" seems to be a way to select the actual digital interface for output. There is also a screen for digital input. Pictures below.
Regarding "Power Amplifier Setting", your explanation is as good as mine as it is not clear if we are talking about output or input and in both cases "None" purpose is a question mark. And it's not clear at all which selections are actually active in our units. A lot to figure out.

Apologies Chuck - I see what you were saying on re-reading. Regarding the other screens, it appears that the unit has settings for I2S and SPDIF. Again, their use of these terms isn't clear to me. SPDIF is an optical audio format - often people use the SPDIF term to refer to RCA digital ports and Toslink to refer to the 'optical' port, but in reality SPDIF is just name for the interface. I2S is similar but incorporates advanced clock speed sync-ing. I got into this when I built my own streamer for Tidal, but that was a few years back and my recollection of the details is now hazy. One thing is for sure - there is a shedload of stuff to figure out! I hope Andy gets some good feedback from Erisin.
Old 02-03-2024, 08:14 AM
  #1986  
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@andy2111 Andy - those ***** I got were too shallow for the spindle. If you remember, would you please post the results of the trial ***** you ordered and let me know which one fits? A benefit of the ***** I tried would have been the larger diameter, which covers up the outer illuminated circle, making it less bling. The light still shines through the **** design itself, so they would have looked great if they had fitted.
Old 02-03-2024, 08:20 AM
  #1987  
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Will do Zed. They are still making their way to me from China, I think the estimated delivery is the week after next.

Mine have a larger diameter too for the same reason

I'll also cut the spindles down on the old HU at some point to see what the OEM ***** look like
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Old 02-04-2024, 10:16 AM
  #1988  
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Originally Posted by andy2111
Will do Zed. They are still making their way to me from China, I think the estimated delivery is the week after next.

Mine have a larger diameter too for the same reason

I'll also cut the spindles down on the old HU at some point to see what the OEM ***** look like
Thanks Andy. By the time you have received and tried out yours the Chinese NY holiday wll be over and I can order whatever you recommend. I don't dislike the standard ***** - I just want to cover that outer illuminated circle really as I think it's too much. On the Panamera, I installed a Pedal Commander a while back and that is a fantastic (invisible) upgrade, and I am waiting on a carbon fibre steering wheel to arrive. Off-topic here of course, but I may document the steering wheel upgrade in a new thread. Pedal Commander is already covered everywhere, especially YT. This is the wheel:


I especially wanted the steering wheel controls, but I like the carbon fibre as well! The multifunction controls will work with the aftermarket head unit so that is a bonus.

Last edited by ZedZed; 02-04-2024 at 10:21 AM.
Old 02-04-2024, 01:38 PM
  #1989  
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I'm really interested in both of those mods.

I've already enquired about the multi function wheel upgrade and I might start to look on ebay for a suitable option once I get the HU sorted.

I'd not seen the pedal commander but having had a quick look it does seem like a great upgrade

Waiting for erisin to deliver my new head unit before I think about a else!
Old 02-04-2024, 03:15 PM
  #1990  
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Originally Posted by ZedZed
Thanks Andy. By the time you have received and tried out yours the Chinese NY holiday wll be over and I can order whatever you recommend. I don't dislike the standard ***** - I just want to cover that outer illuminated circle really as I think it's too much. On the Panamera, I installed a Pedal Commander a while back and that is a fantastic (invisible) upgrade, and I am waiting on a carbon fibre steering wheel to arrive. Off-topic here of course, but I may document the steering wheel upgrade in a new thread. Pedal Commander is already covered everywhere, especially YT. This is the wheel:


I especially wanted the steering wheel controls, but I like the carbon fibre as well! The multifunction controls will work with the aftermarket head unit so that is a bonus.

You must be my long-lost brother because I installed Sprint Booster on my 911 and ordered a CF steering wheel a few months ago. Just need to install.
Old 02-04-2024, 04:02 PM
  #1991  
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They mentioned that inserting the new PC cards was causing conflicts with standard audio functions, they didn't say which behaviors specifically, but La Jolla Audio has been in business forever with a strong local reputation for high end audio upgrades specializing in exotics and Porsches. I usually trust them just curious of people are having issues or generally happy weighing on whether I should consider another shop or DIY.
Old 02-04-2024, 06:37 PM
  #1992  
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Originally Posted by Haidang
Thank you very much Zed.
I am out of town for 2 weeks!
I will order all the items that you recommend then hook it up.Thanks for your help.
Hey Zed and Folks!
Just installed Erisin but no sounds!
Wondering what I missing?
Please help?
Thank you very much.



Old 02-04-2024, 08:51 PM
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Originally Posted by Haidang
Hey Zed and Folks!
Just installed Erisin but no sounds!
Wondering what I missing?
Please help?
Thank you very much.




You need to plug the fiber optic cable from the car into the port on the MOST box. They're still in the PCM:


Last edited by ZedZed; 02-04-2024 at 08:59 PM.
Old 02-04-2024, 08:55 PM
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Originally Posted by Porsche_nuts
You must be my long-lost brother because I installed Sprint Booster on my 911 and ordered a CF steering wheel a few months ago. Just need to install.
Clearly an outbreak of greatminditis

Old 02-04-2024, 09:12 PM
  #1995  
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Posted some notes in the Macan Mr12Volt PCM 3.1 thread found here, but the short version is that I ordered and installed the Mr12Volt PCM 3.1 kit for my 991.1 7MT GTS with the Burmester system, and couldn't be happier with the results! Ordered from RomanACS, and the installation was relatively painless with a lot of good info in that thread, these forums, and youtube. Works with wireless CarPlay and Android Auto with no issues, sounds great, and the switch to/from the OEM reversing camera works!

The PCM 3.1 has a pretty low-res screen by today's standards, so don't expect any amazing. But it's good enough to run Waze and a music app on the screen at the same time!


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