Why does my USB seem to interfere with Bluetooth audio?

[rhodesengr]

USB seems to interfere with Blue tooth audio

I just bought my first smartphone , a Galaxy S5. While I new to smartphones, I am not new to tech. In my car ( a 2015 Subaru Forester) I was powering my S5 with the USB cable plugged into the car's USB port. I had the phone playing Pandora. I sort of assumed that I would get the music signal on the USB line but found that the enabled BT was overriding the USB so I was getting the music with my radio set to BT-A. The problem was that the every few seconds the volume would drop and the phone would make two beeps. If I disconnected the USB cable and ran off battery, this issue went away.

On further inspection, I noticed that on every volume drop with beeps, a USB connection notification was appearing in the notification lists. I just wanted the USB for power but it seemed to be trying to connect over and over and each time, the notification was interfering with the audio. I could not find a setting to stop the S5 from trying to connect to USB data.

Any ideas?

 

[Gekko]

Re: USB seems to interfere with Blue tooth audio

I just bought my first smartphone , a Galaxy S5. While I new to smartphones, I am not new to tech. In my car ( a 2015 Subaru Forester) I was powering my S5 with the USB cable plugged into the car's USB port. I had the phone playing Pandora. I sort of assumed that I would get the music signal on the USB line but found that the enabled BT was overriding the USB so I was getting the music with my radio set to BT-A. The problem was that the every few seconds the volume would drop and the phone would make two beeps. If I disconnected the USB cable and ran off battery, this issue went away.

On further inspection, I noticed that on every volume drop with beeps, a USB connection notification was appearing in the notification lists. I just wanted the USB for power but it seemed to be trying to connect over and over and each time, the notification was interfering with the audio. I could not find a setting to stop the S5 from trying to connect to USB data.

Any ideas?

Solution - USB Charging-Only Cable (No Data) -

Amazon.com: PortaPow Specialised 5ft 20AWG Charge Only Micro USB Cable for Blackberry, OnePlus One, HTC One, Google Nexus, Asus Transformer, Dell Venue, Other Fast Charging Devices: Computers & Accessories

 

[rhodesengr]

Re: USB seems to interfere with Blue tooth audio

ummm, well I had a USB cable sitting around with the same partial plug that comes on the end of my 12V car charger cable. I can't swear it is "charge-only" but looks like the charge-only kind of plug. When plugged into the USB port, I get the same problem. If I use the 12V cable and don't use the USB port at all, it works fine. Out of curiosity, I am going to order the suggested charge-only cable and see how it works.

 

[Gekko]

Re: USB seems to interfere with Blue tooth audio

ummm, well I had a USB cable sitting around with the same partial plug that comes on the end of my 12V car charger cable. I can't swear it is "charge-only" but looks like the charge-only kind of plug. When plugged into the USB port, I get the same problem. If I use the 12V cable and don't use the USB port at all, it works fine. Out of curiosity, I am going to order the suggested charge-only cable and see how it works.

you're welcome.