AccordCoup94

hi. there is a fuse labled "small light" under the hood of my 1994 honda accord. does anyone know what this fuse is for? it just keeps blowing ever since i installed my system. i disconected the power wire for my amp and it still blows. there are a million small lights in the damn car. the only ones i know that are blown is my ashtray light and my cruise control light. do u guys think it could be that? every time i replace the blown fuse, it blows again when i turn on my lights. this is aproblem because all of my interior lights go out and even more important, my rear auxilary lights are out too.