Has anyone done a CarPlay retrofit / Headunit replacement for 991.1
#3631
Burning Brakes
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In my Panamera, which has Bose, I am not hearing any significant differences in sound TBH. (I am an experienced listener of very high quality audio systems). I am of the view that a DAD additional conversion makes negligible practical differences, even in high-end systems, let alone car systems.
But even if the sound from these units did suffer somewhat, that is more than compensated for by all the up-to-date features these units bring. Even Porsche are of the view that PCM 3.1 is not a satisfactory infotainment solution any more, which is why they have junked it (at last).
#3632
Burning Brakes
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#3633
Burning Brakes
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Sorry you disagree. I just installed this and the audio quality is night and day. It uses the same factory fiber optics connections to the Bose amp and speakers. But I agree, sound is subjective, the factory sound may sound better to some. The 991.1 PCM Bose sounds like crap compare to one of the BASE MODEL eGolf I test drove. But then the 991.1 was launched over a decade ago, so I am not suprise the system isn't as good.
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#3634
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Update: Wireless CarPlay has been working great. It typically boots up and loads super fast. It was occasionally kicking back to the native android mode; but I believe I have solved that problem. I think it was a setting on the vivid launcher to automatically go back to the Home Screen after a period of time.
so far I am very pleased with the unit and it’s a huge upgrade.
my lane change assist error went away and everything seems to be working fine.
The rear speakers are not playing any sound. I have messed with the equalizer/fader settings ad nauseum and cannot get any sound. I have Bose and used the most box. My daughters complain a little bit but I have great sound in the front. If anyone has any suggestions about the rear, let me know. Probably not as much of an issue in a 911. Kinda annoying in the Macan
so far I am very pleased with the unit and it’s a huge upgrade.
my lane change assist error went away and everything seems to be working fine.
The rear speakers are not playing any sound. I have messed with the equalizer/fader settings ad nauseum and cannot get any sound. I have Bose and used the most box. My daughters complain a little bit but I have great sound in the front. If anyone has any suggestions about the rear, let me know. Probably not as much of an issue in a 911. Kinda annoying in the Macan
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ZedZed (08-09-2024)
#3635
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Update: Wireless CarPlay has been working great. It typically boots up and loads super fast. It was occasionally kicking back to the native android mode; but I believe I have solved that problem. I think it was a setting on the vivid launcher to automatically go back to the Home Screen after a period of time.
so far I am very pleased with the unit and it’s a huge upgrade.
my lane change assist error went away and everything seems to be working fine.
The rear speakers are not playing any sound. I have messed with the equalizer/fader settings ad nauseum and cannot get any sound. I have Bose and used the most box. My daughters complain a little bit but I have great sound in the front. If anyone has any suggestions about the rear, let me know. Probably not as much of an issue in a 911. Kinda annoying in the Macan
so far I am very pleased with the unit and it’s a huge upgrade.
my lane change assist error went away and everything seems to be working fine.
The rear speakers are not playing any sound. I have messed with the equalizer/fader settings ad nauseum and cannot get any sound. I have Bose and used the most box. My daughters complain a little bit but I have great sound in the front. If anyone has any suggestions about the rear, let me know. Probably not as much of an issue in a 911. Kinda annoying in the Macan
#3636
Burning Brakes
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Update: Wireless CarPlay has been working great. It typically boots up and loads super fast. It was occasionally kicking back to the native android mode; but I believe I have solved that problem. I think it was a setting on the vivid launcher to automatically go back to the Home Screen after a period of time.
so far I am very pleased with the unit and it’s a huge upgrade.
my lane change assist error went away and everything seems to be working fine.
The rear speakers are not playing any sound. I have messed with the equalizer/fader settings ad nauseum and cannot get any sound. I have Bose and used the most box. My daughters complain a little bit but I have great sound in the front. If anyone has any suggestions about the rear, let me know. Probably not as much of an issue in a 911. Kinda annoying in the Macan
so far I am very pleased with the unit and it’s a huge upgrade.
my lane change assist error went away and everything seems to be working fine.
The rear speakers are not playing any sound. I have messed with the equalizer/fader settings ad nauseum and cannot get any sound. I have Bose and used the most box. My daughters complain a little bit but I have great sound in the front. If anyone has any suggestions about the rear, let me know. Probably not as much of an issue in a 911. Kinda annoying in the Macan
#3637
Rennlist Member
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Not sure what the latest version of CarLink is that the head unit itself will update to, but here's a link to the latest .apk on XDA (only install this if you know what you are doing!)
Question - Any Car Link Update? | Page 18 | XDA Forums
Question - Any Car Link Update? | Page 18 | XDA Forums
#3638
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I'd suggest that updates to "system apps" like CarLink only be done from the proprietary "App Store" - and only where there's a problem to solve. Don't assume that latest is better!
Latest release of CarLink for the CHSTEK 7862 via this channel is 2.23.1223.1104.
In the same repository as the guide, I'm keeping copies of the system app APKs that are pulled down by the "App Store" under "03. Software > CHSTEK updates", mainly to facilitate roll-back if ever required.
Latest release of CarLink for the CHSTEK 7862 via this channel is 2.23.1223.1104.
In the same repository as the guide, I'm keeping copies of the system app APKs that are pulled down by the "App Store" under "03. Software > CHSTEK updates", mainly to facilitate roll-back if ever required.
#3639
Burning Brakes
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I'd suggest that updates to "system apps" like CarLink only be done from the proprietary "App Store" - and only where there's a problem to solve. Don't assume that latest is better!
Latest release of CarLink for the CHSTEK 7862 via this channel is 2.23.1223.1104.
In the same repository as the guide, I'm keeping copies of the system app APKs that are pulled down by the "App Store" under "03. Software > CHSTEK updates", mainly to facilitate roll-back if ever required.
Latest release of CarLink for the CHSTEK 7862 via this channel is 2.23.1223.1104.
In the same repository as the guide, I'm keeping copies of the system app APKs that are pulled down by the "App Store" under "03. Software > CHSTEK updates", mainly to facilitate roll-back if ever required.
If you are going to use either app, you will need to know about installing apks, and be sure to download them from reliable sites such as apkMirror.
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bmxtreme (08-10-2024)
#3640
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I noticed @jadski has Carlink 2.24.0418.1646 in a screenshot. The 24.0418 is probably a date code. Of course there's no changelog to be found, but hopefully bug fixes. *edit - oops just saw the link to XDA with 2.24.0611.1557. I need to try updating from the FYT app store again or will sideload this.
For rear speaker sound - I believe the fader gets stuck on whatever the PCM had set before being removed. It's possible that's your issue. The head unit fader won't work because it only outputs a stereo signal.
For rear speaker sound - I believe the fader gets stuck on whatever the PCM had set before being removed. It's possible that's your issue. The head unit fader won't work because it only outputs a stereo signal.
Last edited by drawz; 08-10-2024 at 12:03 AM.
#3641
Burning Brakes
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I noticed @jadski has Carlink 2.24.0418.1646 in a screenshot. The 24.0418 is probably a date code. Of course there's no changelog to be found, but hopefully bug fixes. *edit - oops just saw the link to XDA with 2.24.0611.1557. I need to try updating from the FYT app store again or will sideload this.
For rear speaker sound - I believe the fader gets stuck on whatever the PCM had set before being removed. It's possible that's your issue. The head unit fader won't work because it only outputs a stereo signal.
For rear speaker sound - I believe the fader gets stuck on whatever the PCM had set before being removed. It's possible that's your issue. The head unit fader won't work because it only outputs a stereo signal.
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StanfordBear (08-10-2024)
#3642
Burning Brakes
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^^^^
It should be possible, with a bit of jiggery-pokery, to wire the front output to the rear output, stick a cheap potentiometer in somewhere (say under the dash or in the glove box) and create a rear speaker setup. Once a decent balance has been achieved between front and rear, the pot shouldn't need to be touched again, so can be hidden away. The caution would be that if the speakers are wired in parallel, then there is a halving of impedance to both sets. With 8 ohm speakers, this would give a total load impedance of 4 ohms for each speaker . This should be OK for most modern amps, but I would recommend checking the impedance of the existing speakers and the rating of the existing amp. If the original speakers are already 4 ohm, then dropping to 2 ohm might be more than the amp is happy with. Having said that, if the speakers are wired in series, then this should be safe - two 4 ohm speakers in series, for example, makes a total load impedance of 8 ohms (or two 2 ohm speakers = total load of 4 ohms) which most amps should be OK with. Bear in mind that changing the overall impedance will increase or decrease the power output of the amp.Parallel wiring = increased output power and Series winding = decreased output power. So a Series setup might result in insufficient amp grunt (although probably of no concern in a car setup for most).
For most people, these suggestions are probably not worth the trouble - esp. those with 2 seater cars. For those with 4 seater cars, it may be worthwhile if you regularly carry back seat passengers who want music. But in my own use scenario, if it's kids in the back seats, they are much happier using their phone to stream content of their choice. This has the knock-on benefit that the driver doesn't have to listen to Taylor Swift at max volume for hours on end
It should be possible, with a bit of jiggery-pokery, to wire the front output to the rear output, stick a cheap potentiometer in somewhere (say under the dash or in the glove box) and create a rear speaker setup. Once a decent balance has been achieved between front and rear, the pot shouldn't need to be touched again, so can be hidden away. The caution would be that if the speakers are wired in parallel, then there is a halving of impedance to both sets. With 8 ohm speakers, this would give a total load impedance of 4 ohms for each speaker . This should be OK for most modern amps, but I would recommend checking the impedance of the existing speakers and the rating of the existing amp. If the original speakers are already 4 ohm, then dropping to 2 ohm might be more than the amp is happy with. Having said that, if the speakers are wired in series, then this should be safe - two 4 ohm speakers in series, for example, makes a total load impedance of 8 ohms (or two 2 ohm speakers = total load of 4 ohms) which most amps should be OK with. Bear in mind that changing the overall impedance will increase or decrease the power output of the amp.Parallel wiring = increased output power and Series winding = decreased output power. So a Series setup might result in insufficient amp grunt (although probably of no concern in a car setup for most).
For most people, these suggestions are probably not worth the trouble - esp. those with 2 seater cars. For those with 4 seater cars, it may be worthwhile if you regularly carry back seat passengers who want music. But in my own use scenario, if it's kids in the back seats, they are much happier using their phone to stream content of their choice. This has the knock-on benefit that the driver doesn't have to listen to Taylor Swift at max volume for hours on end
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#3643
Rennlist Member
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Could the suggestion that the rear fader settings from the last use of the PCM be relevant here? Maybe if the rears had zero volume before the PCM was removed it might account for the current problem?
Requires a quick refit of the PCM to try to fix it though....
Requires a quick refit of the PCM to try to fix it though....
#3644
Intermediate
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With my CHSTEK 7862e arriving next week, I just wanted to clarify whether anyone who has installed it has been getting sound to the rear speakers without any additional type of mod? My current PCM fader settings are set to have sound from the rear Bose speakers.