Hardwire Kit Cable HK3 background noise

[atlex]

There is high frequency background noise in the audio of A129 Duo/Pro if i use HK3 ACC Hardwire Kit.
If i use normal USB cable with car charger then audio is much better.

Video with A129 Duo with HK3 and A129 Pro with car charger.

 

[Gooffeyguy]

Yes, they say that newer version of hardwire kit fixes this issue.

I purchased my camera and hardwire kit end of May/early June and it does it. I didn't nitice it at first because I suffer from tinnitus and have a high pitched ringing in my ears all the time.

Sent from my SM-G930V using Tapatalk

 

[atlex]

Looks like the high frequency noise comes from a camera unit itself.