This is a common issue hooking up to many 8.4 units. Please, so we can keep track... make sure you tag Mopar care, as well state what radio you have. 8.4 nag or non-nav. Blah blah blah. As a work around, use your Bluetooth for your audio. Turn you phone up to 90% volume and then play with the volume in truck. This has worked well. The sound quality is much better.
it is fact that
@RamCares has issues with the USB passing clean audio. Programming or hardware is the question. I’ve seen it happen a lot with non-nav units. This also negates being able to use Apple car play and hear audio safely. This really should be a concern to
@RAM or
@RamCares (sorry if I’m tagging wrong)
OP please edit your post to include important details. Cable used (oem apple?) phone and what radio in truck. Thanks.