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post #1 of 10 (permalink) Old 09-17-2018, 06:28 PM Thread Starter
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CarPlay wireless or?

Once the CarPlay update is complete, software and hardware, is completed, is CarPlay wireless?
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post #2 of 10 (permalink) Old 09-17-2018, 06:41 PM
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No. You have to plug in to bring your home screen Icons (phone-messages etc.) up on the car display screen. Plugging in is what "starts" the system.

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post #3 of 10 (permalink) Old 09-17-2018, 11:49 PM Thread Starter
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CarPlay is wireless with some head units.


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post #4 of 10 (permalink) Old 09-18-2018, 12:49 PM
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Wireless CarPlay is not possible with the Mazda Connect head units as they are now. They lack the Apple CarPlay authentication chip the new USB hub contains from the retrofits. This is why the software update alone is not enough for CarPlay to work.
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post #5 of 10 (permalink) Old 09-18-2018, 01:57 PM
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Quote:
Originally Posted by Viper67 View Post
CarPlay is wireless with some head units.


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And those are???

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post #6 of 10 (permalink) Old 09-18-2018, 04:05 PM
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Alpine and Pioneer offer some wireless headunits.

AFAIK, BMW and Porsche offer it on their OEM systems. Volvo might, too. Not many do.

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post #7 of 10 (permalink) Old 09-24-2018, 09:16 PM
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The audio quality has to be less than stellar since audio ive bluetooth is downcoded terribly already.

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post #8 of 10 (permalink) Old 09-25-2018, 11:25 AM
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Quote:
Originally Posted by 93blkongreenpro View Post
The audio quality has to be less than stellar since audio ive bluetooth is downcoded terribly already.
^^^^^^ This

When I'm plugged in to carplay the voices of my calls sound so much better than when connected to bluetooth.
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post #9 of 10 (permalink) Old 09-25-2018, 01:05 PM
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Likely because Bluetooth HFP (phone calls) audio quality is transferred via a mono data stream with other modulation and whatnot going on as well (look up SBC codec), plus there's an upstream microphone component. A2DP (music) on the other hand is capable of stereo 320kbps+ audio quality, but it's largely dependent on if the head unit is coded to receive that data/what the Bluetooth receiver is capable of. Since our Mazda HUs have to receive other library data there's also overhead (AVRCP 1.5 probably) which could prevent full 320kbps from happening, but I would absolutely expect at least 256kbps stereo to be possible via Bluetooth. For most people I don't think this is terrible.

Wired CarPlay on the other hand is whole different ballgame. Wired CarPlay is obviously transferred via USB but is limited to USB 2.0 data spec (theoretical sequential data speed of ~480Mbps, but expect about half that and substantially less for simultaneous upstream and downstream transfers). Nonetheless audio will sound better in this case because there's still more bandwidth than Bluetooth that can be used, and the audio is processed entirely differently/better. Now you can take advantage of VOIP quality phone calls, and higher quality music.

Wireless Carplay however can actually provide the best quality. From my experience Bluetooth is only required to pair in this case, but WiFi is what's primarily used (can verify this), making for a substantially better bandwidth allowance than USB. This is why the screen resolution is much higher when using CarPlay via WiFi than USB (no 800x480 res limit). While I can't say for sure audio quality isn't lost because I'm sure on some super minimal degree it is, I haven't noticed any distinguishable audio quality degradation via wireless Carplay. Since CarPlay is basically an AirPlay extension of your iPhone's screen anyways, it could be possible Apple is transferring it using their lossless codec.

So really wireless CarPlay is what we really want, unless the default Mazda system can start supporting lossless audio files.

Last edited by MZ6Alex; 09-25-2018 at 01:08 PM. Reason: spelling
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post #10 of 10 (permalink) Old 09-25-2018, 08:17 PM
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Honestly, I don't understand why anyone really wants wireless AA/ACP in their cars. I usually plug in my phone each time I get in my car since streaming BT audio along with usage of the GPS tends to drain the battery a bit more quickly than with normal usage.
As for higher audio/video quality, not sure if that really makes a good argument when streaming through factory Blose speakers and displaying on a relatively small 8" display. Unless this car has a wireless charge pad, wouldn't really make much sense to support wireless carplay since you'd still be plugging in the phone to keep it charged anyway.
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