I have an Rx8 R3 and the radio goes crazy sometimes it doesn't turn up the volume, it doesn't change the channel, the radio lights blink, what could it be?

 

Gheck rhe back of your facellate it has two brass inserts they come loose and prevent things from being powered. How I have no jdea I have only recently learned of this myself but take your face plate off and look for these brass inserts glue them back in if fallen off or loose