hi, thanks for your reply!
I know I dont need a switch but I want to use it as an on-off switch (bridge position is sound on, neck position is sound off). The reason for that is that I am upgrading from a (cheaper) guitar body and I can cover up the holes where the pots were more easily than the holes of the 3-way switch.
I just need to know how to wire the 3way switch to the jack