Wiring
Non-Artist's Rendering of Strat(tm) Wiring
The drawings below are very simplified drawings and are not to scale. Note that there is quite a bit of variation in Stratocaster "innards;" some have switches that are shaped differently with the terminals in different places, some have smaller pots, the color codes on the wires vary, and so on.
"Standard" Stratocaster Wiring
Shielded Stratocaster Wiring
Note: Make sure the pot bodies (shells) are grounded to the foil via the shaft. I've never seen one that isn't, but there is a first time for everything especially as the manufacturers start using cheaper and cheaper components. In the event you find a pot that doesn't have a grounded shell, simply move the tremelo wire and output jack wire shield to ring terminals under the pots.