Radio quit, black screen, static

[Honestron161X]

I disconnected the battery during cold spell because it went dead. Left it on a battery tender for a few weeks till the weather we r broke.
Reconnected the battery, everything works except the radio now. I have a blank screen and static no matter what button I push.
Checked the fuse, it's good. Of course or I wouldn't have static, right?
Is there a factory rest function I can try?
This is a 2012 Explorer XLT.

 

[Honestron161X]

Quick update! I now, for some reason, have audio back. At least on one station, country, which is great!
I still have the black screen. If there is a DIY remedy for that, I would sure appreciate it. Thanks!