crg5980

I'm really hoping someone knows the answer to this. My 2005 RX8 center display does not work when it is warm inside the car. The display shows garbled text across it. When it is very hot inside the car, all the controls on the console (radio, AC) stop working until the interior cools down. I've brought this car to the dealership to be fixed 3 times for this same problem. They've replaced 2 different parts that didn't fix the problem. The last time they mentioned they saw a cracked circuit board inside the center console and they would need to order the part. Unfortunetly I never got that part because I moved to Korea with my Mazda. Mazda has no service centers in Korea. I could order the part and have a repair shop here fix it if I knew what I needed. Any ideas?