I agree there should be an
I agree there should be an OFF button or OFF option to keep the darn radio off until I want it on. I am not sure I would have purchased this rig either.
In my wife's chevy we have a problem with the radio has to be on in order to hear directions from the navigation voice. But you can't turn up the nav voice without turning up the radio voice.
I don't want to have to replace my radio but maybe that is the only option other than replacing the rig which may be easier and cheaper.