I have a 2005 RX 330 and the radio stopped working. It originally quit and then later that day it started working again. The second time it quit and started working a few days later, but only for a little while. Now it does not work at all. There is no display and the internal 6 CD player does not work either. When you push the on button it will illuminate the back lighting, but again no display.

 

I have the same year and same issue. It works when it wants to and not when you want it to.