1998 Toyota Siena Electric Problem

Hi. I was stopped at a light and my after factory radio started blinking and the sound went off. Took the face plate off and put it back on, but it still blinked with no sound. I then turned the car off and when I tried to turn it on, there was nothing but clicking noise (dead battery sound) and it wouldn't start. Other electric things worked fine (interior lights, hazards, etc) Got a jump and it started right away. All other electic functions are working normally. An hour later started the car with no problem. Radio and everything else worked fine. What could be the problem? Thank you