Infinity Stereo / Radio
I have a 2009 Hyundai Sanata Fe Limited. Every now and then I get a loud noise from the stereo, it's almost a bang like a firecracker but lasts longer. I thought it might have been electrical interference like lightning or power tranformers. It's happened with the radio, the USB port and playing a CD. On one occassion the unit ceased working and didn't come back till several attempts later. The noise is much louder than the listening volume and I must saw quiet alarming. I was wondering if anyone else has experienced this?