Noisy aux audio / ground loop
#1
Member
Thread Starter
Noisy aux audio / ground loop
Hi,
Got a 2014 GL450 recently. Does anyone else use their phone or other device to listen to music via an aux input cable (not bluetooth), and also power the phone/device using cigarette lighter?
I'm using a HTC One phone, and with this setup I get unusably noisy audio, lots of strange noises. Apparently a ground loop problem. If I power the phone instead using the 115V plug on the 2nd row then the audio is perfect.
Wondering if this is a common problem or something is wrong with either my phone or car.
Got a 2014 GL450 recently. Does anyone else use their phone or other device to listen to music via an aux input cable (not bluetooth), and also power the phone/device using cigarette lighter?
I'm using a HTC One phone, and with this setup I get unusably noisy audio, lots of strange noises. Apparently a ground loop problem. If I power the phone instead using the 115V plug on the 2nd row then the audio is perfect.
Wondering if this is a common problem or something is wrong with either my phone or car.
#3
MBWorld Fanatic!
What type of cigarette lighter adapter ?
With what you have - what happens using 2nd row ?
If noise is same from 2nd row adapter I would "suspect" and crummy 12V cig adapter and I would start there 1st if that was me
With what you have - what happens using 2nd row ?
If noise is same from 2nd row adapter I would "suspect" and crummy 12V cig adapter and I would start there 1st if that was me