I have an 05 4runner with the factory JBL system and Navigation unit. I disconnected my battery for a few hours to replace my battery. When I reconnected everything, I noticed that my navigation unit wasn't responding to any touch commands (touchscreen isn't working) or button commands. I am able to listen to music through the mode button on my steering wheel controls and can raise and lower the volume and that's it. I have tried disconnecting the battery for 10 minutes and releasing the DVD for the GPS but it still doesn't work.

When I take the GPS dvd out, I get the screen that tells me to replace it and when I replace it, I get the warning screen (it's the old disc so I get the screen that says to press english or french).
When the vehicle is off, I can press the open button on the unit and it works, revealing the tape deck and cd slot but when the vehicle is on the open button doesn't work.

Anyone have any ideas on what the issue could be? Thanks for the help.