radio wont turn on after battery replacement

hi i recently replaced my battery on my 5th gen prelude. The stereo is a pioneer deh-p600ub and it wont turn on. No lights , no sound, however once the engine shuts off, the motorized faceplate did release and let me remove it plate. I have heard that some cars need a code to reboot the radio if battery was removed, but i believe that only apply to the original radio and not an aftermarket one.

anyone have experience in this sort of thing? thanks

Maybe it's a fuse? Something may have shorted and glitched either a fuse or something in the radio.