Severe static noise only with digital inputs

[tojojo]

My 2016 CX-5 (non-Bose audio) has bad static noises only with digital inputs (usb and bluetooth with iphones, mp3s in thumbdrives... but, CDs are okay(dunno)).
When I tuned EQ (less treble), the noise reduced substantially, but it's still there.
Can this be a problem with ground wiring, or with the headunit (DAC or etc.)?

 

[Anchorman]

Mine was perfect until I ran a wire to the rear camera through the same trunking as the roof antenna and now it is all static and hardly any reception. I will be modifying that soon as there must be a field around the power wire.

 

[CX-5um]

Pretty sure the flux capacitor is low on banana peels- causes static.

 

[tojojo]

The service dept in the dealership tried to convince me that the noise is a kind of source problem.
It should be wiring, bad digital circuit, or EMI interference...well, might be hard to find what really causes the noise (gah)
EQ is set to min. for both treble and base, which is not that bad with road and wind noise...