Hi,
I got the 8400 last summer, had the freezing issue right away, swapped 2x and all had the same issue. Called Pioneer and was told to send in, since I didn't wanna go without a radio all summer i declined. Stored car for winter, just took it out and after a couple of weeks freeze started, specially seems to happen when i open the top of my convertible. Funny thing also is that touchscreen was frozen but when i swapped to gps, touchscreen seemed to work.. Recently had the firmware upgraded via bluetooth, no change in touchscreen freeze.
I'm out of ideas, considering i paid good mo