starter and killswitch wiring

What is the correct way to wire my starter to a trunk mounted battery and killswitch ?

I know the way I have it set up is'nt right and its not very safe.

Right now I have a 2 guage wire running from the starter all the way to the killswitch then back to the battery (switch doesnt kill the engine if its running) and a ground from the battery to the frame rail aswell as one fron the motor to the frame rail.

I know this has been covered a million times, sorry.

Pictures and diagrams would be great. Also Im running a cheap Summit killswitch.