Have a problem with my (2004) radio as well - the am lost its preset of my stations and won't allow reset of buttons, and even makes it hard to locate stations manually, but works fine on fm...what the Heck???
pull radio fuse , disconnect negative battery terminal wait a few minutes. Install fuse hook up battery Works like it should
btw. In both coupes we’ve had we have-replaced
the original unit with a JVC unit with Bluetooth
I have 2 original infinity radios 🤓