IvanRaide

I actually created this original volume knob project, but while I have the DMH-WT8600NEX the AVH-4500NEX is a different enough animal that I am not sure it would work. According to crutchfield it does have a W/R line input on the back, but that does not mean it would necessarily work (I would be surprised if it didn't, but you never know). But I did make a fork of this project to work for IR which this unit does have, so you could use the IR method, (but you would need to place the IR eye somewhere with line-of-sight). I don't know enough about the 4500NEX to say for sure. You might want t

On reddit, there is a user saying it blocks the soft-bypass, can anyone here confirm that? https://old.reddit.com/r/CarPlay/comments/tqzyrg/pioneer_dmhwt8600nex_and_wtx600nex_firmware/

I updated and drove for a bit, I didn't notice any difference, but I wasn't having any problems.

Looks like they released a new firmware, maybe it will help people with problems? I didn't see any update notes, and haven't tried it myself. https://www.pioneerelectronics.com/PUSA/Car/NEX/DMH-WT8600NEX#downloads

When you say, "music app" do you mean the default Music app, or just "any" music app? I no longer use the Apple music app, but the music app I use is not experiencing any problem. If it’s only on the stock music app, does it have the same problem with other music apps like Spotify?

You could try to update the firmware by putting 1.3x on a usb stick? Not sure it will let you downgrade, (not sure anyone has tried to do it?) it’s not just 5x2 though, it’s now reporting its resolution properly, (you can see more of the map/more entires per screen, etc) so consider if its worth downgrading

Here are a bunch of screenshots, but basically it now supports 5x2 icons, and also side-screens other pioneer functions (like HD Radio, Camera, etc) https://imgur.com/a/P0fvHST

Pioneer updated the firmware to 2.00 and included a new split screen feature, haven't tried it yet, this is more FYI It covers a bunch of headunits though... https://www.pioneerelectronics.com/PUSA/Car/NEX/DMH-WT8600NEX#downloads

I have used the stereo's USB-C and C-A adapter and then a regular Apple USB-A lightning cable and it works fine. Make sure settings\face id & passcode\USB accessories is turned on maybe

Do you have an Shortcut automations? Do you have Shortcut notifications disabled?

A post I made back here about the unit booting into this display, had gone away until I updated to iOS 14.3 now it boots to this screen every time!? Anyone else having this? Update: So the update is, if I hit OK on the warning at the start the unit will show wiif-audio for a sec, and switch to CarPlay GUI, but if I leave the warning to time out, then it will stay in wifi-audio section. This only started happening around the iOS 14.3 update, so I suspect its a bit of a incompatibility with what 14.3 wants and the Pioneer is doing on a timed out screen/(maybe just timing)

I dont think thats going to help ... https://photos.app.goo.gl/c7Uz7PzpCJsSee4GA

I tried about 6 other USB sticks before finding one that worked. Those other ones that failed, I have used to play videos on the headunit, so there is something about the firmware environment that seems much more "picky" than when using media. The USB that worked for me was swag from some trade show, (it was a little plastic man, whose head comes off and is a 1GB usb stick), so I don't have any details about its make/etc. Maybe bonee can mention a make/model/link for one that worked?

Is the issue you are having with USB the fact that it doesn't seem to see the USB stick? Or is it something else? I did have a HELL of a time getting the DMH-WT8600NEX to accept a USB stick. I went through a bunch of different USB stick, all of them failed to be recognized, the only one that worked was a small, very old 1Gig USB stick

Good news, the 1.30 firmware is available for download. https://www.pioneerelectronics.com/StaticFiles/PUSA/Car_Electronics/Firmware Update Files/2020-DMH/October_2020/DMH-WT8600NEX.zip