I bought my 2004 Prius used 11 months ago, and love it. Recently I began to have some problems. The radio would shut off. A few minutes later it might turn back on. Then the display sometimes would quit showing the blinking arrows. Lately pressing the radio power button to turn it back on would sometimes take me to the Climate control screen!?!? Sounds like a short in the wiring to me. The dealer says I need a new "display" for $3800. This doesn't sound right. Any ideas / comments?