Hello everyone. I am turning to you all as I have taken my 2015 Mazda 3 I touring to 2 dealerships who are both baffled by my issue and unable to pinpoint. For the last 3 years I have been dealing with an electrical issue (I think). First, the backup camera works sometimes, 1/3 it works great, 1/3 its wavy with lines through it, 1/3 it just is black. Second, the majority of the time I use the radio, both FM and AM have a constant static that sometimes stays at the same pitch, other times the pitch changes with the speed of the car. Lastly, sometimes when i am braking to come to a stop at a light, the radio starts changing stations on its own and stops on a station when i come to a stop. I am hoping someone else has had similiar issue or could point me in the right direction. Things I have tried: New battery, alternator tested, replaced all fuses, unplugged all other accessories (dashcam, usb etc). Side note: bluetooth music through my phone works fine. Thanks for the help!

 

Sounds like common issues with the CMU & MZD display screen. Strange that they haven't replaced anything. I would be escalating this with Mazda USA head office.

 

Thanks for the quick reply, I will give them a call!