well, i just got a free deck that my girlfriends brother promised to work. but, it doesnt. it does but no sound at least. it powers on. once it does and i change it to a different setting i hear a tut!! coming from the speakers. did i do something wrong? here's the diagram i made after i had problems with the first deck i had. using this one made my car come back to life inside. any help would be great!
