I just bought the Scion XB & it had came with the Pioneer Avic F900BT. I have had the car for a few weeks now & just had the XM tuner installed. Everything has been installed properly...but now I had the screen go black & not turn on. So, I tried to install the 2.0 firmware but when it is almost finished, I get an error message that reads, [Error Code = 18 message = 'mabe disk space is sizefull']. I cannot get past that section. However, now my system is rebooting as mentioned in this thread. So, I was going to try the test mode solution. But, I don't think I have the back u