I have joined this forum specially, purely because after my recent purchase of an AVH-P3200BT, I couldn't find anywhere via google an answer to the question of perfect background images for my unit. I assume this should also be applicable to the AVH-3200BT, AVH-P3200DVD, AVH-P3100DVD, AVH-P4100DVD and the AVH-P4200DVD. Who knows, it may also be applicable to the whole AVH series..? Here is my experience...
The native resolution is 16:9 ratio, just like normal widescreen, so lets take a 16:9 resolution, for example 1440x810.
This resolution does not work as a background, it does not