iPhone 15 Pro Max sound is really quiet when connected to my cars speakers through USB-C to AUX adapter...

Via dumb luck I found that when I engage Siri the sound will get as loud as it can.

This is not a helpful response. I updated to 17.1 and have this problem now. I plug my phone in to my whole home system and the volume is very low now. Compared to yesterday where it worked just fine. I have to turn up my system to MAX volume now to be at a listenable level.

Pollo_Loco Said:

“[…]I updated to 17.1 and have this problem now. I plug my phone in to my whole home system and the volume is very low now. Compared to yesterday where it worked just fine. I have to turn up my system to MAX volume now to be at a listenable level.”

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Report this to Apple. See my above reply.

BigKenD88 Said:

"iPhone 15 Pro Max sound is really quiet when connected to my cars speakers through USB-C to AUX adapter...: [...]Any recommendations on a USB-C to AUX cable or adapter that will work better? Oh, I have tried connecting through bluetooth as well as it is also quiet so that is a no go."

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Getting the Right Adapter:

Find an adapter on Amazon or NewEgg. Be certain you verify its compatibility with your iPhone model and the installed iOS.

For reference…

Troubleshooting iPhone Audio:

A Few Links that May Help:

• If you Hear No Sound or Distorted Sound from your iPhone, iPad, or iPod touch Speaker - Apple Support

• If the Microphones on your iPhone aren't Working - Apple Support



• Control Audio Playback on AirPods with iPhone - Apple Support

• Adjust Audio and Visual Settings on iPhone - Apple Support

• Adjust the Volume on iPhone - Apple Support

• Volume Output: If you Can't Hear a Person on a Call or Voicemail or if the Sound isn't Clear on your iPhone - Apple Support

• Volume Input: if your Microphone isn’t Working or People Can’t Hear you While you’re on a Call -Apple Support

I have the same issue with my 15 pro max. It’s driving me nuts, did you find a fix?

Same problem for me. Just tested with my iphone XS and the 15 is MUCH lower... I'm using the apple adapter. Doesn't matter the app

Check out (sepher83) in comments. Those instructions just worked for me and when I replied and commented it didn’t reshare his suggestion. So scroll down and check out in thread.

settings

accessibility

voice over (click on)

scroll down to audio

voiceover sounds & Hapnics

turn “Sounds” off

BigKenD88 Said:

"iPhone 15 Pro Max sound is really quiet when connected to my cars speakers through USB-C to AUX adapter...: [...]Any recommendations on a USB-C to AUX cable or adapter that will work better? Oh, I have tried connecting through bluetooth as well as it is also quiet so that is a no go."

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For reference...

Troubleshooting CarPlay:

A. Driver's Manual:

Read your driver's manual to find out more about syncing this.

B. Try being in Park:

For many, they must have their automobile in park to get this to all pair.

C. Visit this Link:

If you need help with CarPlay - Apple Support

yes! It’s ridiculous the volume is so low and the only solution they are listing is about car play. This is obviously about when plugged into an aux cable. I wouldn’t use an aux cable if I had car play smh

i have the 15 pro max and with the latest update i used my adapter/aux cord on my radio and before the update i could have my phone calls go through the radio and now they won't. is there a way to fix that?

I am currently trying to follow your directions. I am under headphone safety, I do NOT "connected to headphones" where it says on and off. under the usb accessories. it just says forgter usb settings.

Having the same issue with Iphone15. my iphone 11 would "scream" that I would have to turn the phone volume down and still have a load radio. I am using the same 3.5 mm aux cord with a usb adapater. I have tried 3 different onces from different stores. I had a cheap ebay adapter from aux to the lightning for the 11 and i would say it was at least 60 % louder

"As of the writing in February 2022, the Sound Check feature is only available in Apple's stock Music app. This feature doesn't work in other apps, like Spotify"

https://www.howtogeek.com/786300/what-is-sound-check-on-iphone-and-how-do-you-use-it/

What cheap adapter did u buy, I got one off temu but was looking for one I could pick up tomorrow, I don’t know if I should get the apple brand or no, my temu one I had blasted like my normal radio and my speakers will have ur ears ringing on normal but this adapter or cord idk which one is making my music quiet even with my phone vol and car vol all the way up I don’t know which one it is adapter or aux cord