Manuals

Cant some one tell me where i can get print outs of some of the manuals or diagrams for fixing my 98 blazer lt I looked in the auto parts store and hanes and chilitons were all i could find.Chiltions was just way to expensive and haynes was not indepth enough .Im trying to find and fix problem with radio or wires and find and fix the thing that makes the turn signal noise LoL dont ask me whats its called Thank you