where are all the fuse boxes for a toyota camry le or where is the amp because my sound doesnt wrok but they did work on my last radio

Fuses are to the left of the steering wheel. There is a fuse box under the hood as well. Usually right behind the battery by the drivers fender. If you are getting lights on the radio, then it's not a fuse. On most in dash stereos, the amp is built into the stereo. It's not an external amp. Unless you upgraded the system yourself. The laser eye may be dirty or completely shot as well. Here is a video on how to remove the stereo for replacement or repair. https://www.youtube.com/watch?v=HIGVG3_BYBI