Another thing that should help A LOT in that area (after you get a proper shop manual) is to print out the diagram of the bulkhead connector which are normally designated with letters, not numbers. If you print this out nice and big, you can make notes as to which wires, and as you check them off, etc.
Three tools that are a MUST have are a good 12V test lamp, a decent digital multimeter, and a bag or two of Radio Sh## clip leads. The whole mess can be found for less than 50 bucks.