Outer Limits 4x4 Board

Hi

How do you wire up a toggle kill switch to a 30amp relay fuel pump on the power side of the relay 86 or 30 or to the ground 85?
I want to add a buzzer to remind me to flick the toggle switch, that means using SPDT ON - ON Switch?

Diagram would be great for a dummy like me.

thanks in advance

initial thoughts would be add an always on relay for the buzzer, power the buzzer from ignition, turn ignition on and buzzer sounds until you flip the switch, switch can provide power of earth for both relays when switched