glowplug controler
Go to www.members.shaw.ca/k2pilot/
I think there is a picture there of what you have.
I assume you are talking about the controller and relay, and installing a push button.

This is the picture of the relay for the glow plugs located behind the passenger side battery down on the inner wheel well.
The purple wire has been cut in the picture and a green wire spliced in.
To make this system manual, remove the purple wire and install a wire into the passenger compartment.
Hook the wire to a push button or momentary switch on one terminal.
The other terminal gets a wire running to a power source, I recommend one that only has power when the key is in the ON position.
Operation,
Turn the key to ON
Push the button for 10 seconds and release.
Start the engine.
Using a power source that only has power when the key is on is a child proof thing, they can't play with the switch and toast the glow plugs.






