Greetings to all:
If you want me to create a video of what I am going to describe below, I'll be happy to (maybe help generate some traction for a fix...??)
So, I have a new 2022 SV Plus, and as many others have noted, Carplay (I'm an Apple guy, though I do wander into the Android world now and again) causes crackling sounds when Siri is used for most anything. I've tried having Siri make calls and the phone conversation is sometimes ok, but most of the time has any variation of minor crackling to way too much to even keep the call going.
I also use T-Mobile (actually a T-Mobile MVNO - Mint Mobile).
So, I tried several experiments:
Many people have said a bluetooth conversation has been flawless - I found this to be true, but it is NOT carplay, and I do want my Carplay features with my iPhone
Carplay with a Genuine Apple USB-C to Lightning connector plugged into my iPhone 7 (latest iOS version) causes crackling
Carplay with a generic USB A to Lightning connector plugged into my iPhone 7 causes crackling
Tried a Carlinkit (older model) for "wireless" carplay (dongle plugs into USB A port) and still got crackling
Got a bit more creative - I also happen to have an spare iPhone 6 and purchased a $10 SIM from Tello Mobile (another T-Mobile MVNO) for 3 GB of data - opted to use the iPhone 6 as a hotspot - I set up my iPhone 7 for wifi calling, then disabled Phone use under Cellular, enabled the iPhone 6 hotspot, paired the iPhone 7 to the iPhone 6, plugged in the iPhone 7 to the USB A port with the generic cable to engage Carplay with my iPhone 7 - and had a wonderful conversion with a family member from work to home. Zero crackling and as clear, or better, than bluetooth. They also felt it was the best call quality from my car in a LONG time.
So, to sum things up, we have crackling with
- an iPhone plugged into either front-panel USB port (USB A or USB C) and make calls using the iPhone's built-in cellular radio
- an iPhone plugged into USB A port with a Carlinkit dongle for (wireless carplay) and make calls using the iPhone's built-in cellular radio
- an iPhone plugged into either front panel USB port and make calls using a hotspot, disabling the Carplay phone's cellular radio, thus forcing wifi calling to be used
We do NOT have crackling with
- Bluetooth calls (but this does NOT use Carplay)
8-Apr-2022 Update: Tried again wired, with a hotspot, and got the crackling again!
Can others help replicate these findings and note your results here?
If we have enough validation, maybe we can bring this to Nissan and have them work on it [with Apple] to try and find a fix for us all?
Maybe Android users could also try something similar and see what your findings are as well?
NOTE: If your phone audio DOES work via Carplay or Android Auto *WITHOUT* crackling and *WITHOUT* using Bluetooth, please make note of your Leaf's model year, trim, and at least the model number of your head unit via the "info" soft menu button.
Thank you, and let's see where this takes us.