Reverse Camera on Toyota Prius 2014 not working

Help. For some odd reason my reverse camera isn't working. Any ideas what to check for? Where the fuse location, etc... Thanks

 

Everything work fine except when I put it in R. Nothing show up on the screen. Was working until today. Weird, I had stereo, side mirrors, sills install all this time was fine until today.I was going to check the fuse but have no idea which one for camera. I have an appointment on Thursday with them

 

Let me check. Weird thing when I put in reverse nothing change on display. Doesn't go blank or anything

 

Check all the fuse. They look good. If the fuse was dead. My radio would not display. This one confusing. The manual doesn't show anything regarding fuse for camera. Only thing that come close is the radio but that fuse is good. Let see what Toyota say on Thursday. Going to take day off for Chinese New Years

 

Fixed. Took the car into the dealer. They say because I did a lot of aftermarket mod they can't touch car. Took it to stereo place and they disconnect the AMP but that still did not work. Trace the backup camera and it was fully connected. Hook everything up and still doesn't work. I decide to pull the driver side panel out. Found out two wires was crossing each other. The pins was cross when my friend plug the connector back in. I made sure it was straight. Lucky it didn't break off. Put everything together and reverse now work. Really lucky day. Just a FYI for someone having reverse issue.