Help with speaker buzzing - 3rd Gen

I’ve got a hum coming out of my passenger side tweeter and passenger side rear door speaker when no sound is on

3rd gen
Jbl

stock speakers
Pioneer avic headunite
Maestro controller

Any tips, ideas, advice are welcome

thanks

 

Do you have anything plugged into the aux or connected Via blue tooth? Sounds like signal feedback.

 

Just FYI "help" is usually reserved for being stuck and in need of recovery assistance

 

Make sure that you wired everything up in phase. After that, wire up the left speakers to the right channel and see if the hum is a wire problem or a HU problem.

 

Happens when stuff is plugged in or not, and connected or not

 

Why would you assume a need help post in the audio/video part of the forum is a post about recovery?

I need help with an audio issue I’m having with the truck

 

I thought I did, headunits been in the truck over a year and this started a week ago.

I’ll try the speaker flip.

 

Bad ground?

Unshielded wire?

Might just be hum from the head unit to to a bad filter cap or something.

 

bad ground to radio or truck itself?

Never installed a filter cap. Just swapped the stock head unit out for the avic.

Guess I’m just going to be pulling it out and testing everything

 

Yes, both stereo and truck could effect it

And I mean the signal filters in the headunit itself could be going bad.

 

Doesn’t the H/U send info out to the JBL amp via Maestro?

Check grounds on all 3 devices in signal chain, H/U, Maestro and amp.

 

I'm an idiot please disregard