BII Manual Transmission swap

[Chester]

I'm swapping an A4LD for a 5 speed (Mazda). How does the clutch interlock switch hook up? It's supposed to take the place of the neutral safety switch.
My question I guess is where does is this switch mounted at and what does it hook to?

 

[chrwilkins30]

its on your clutch pedal rod that goes into the master cylinder. You will need to get one from an 88 or newer as the plugs are different.

The plug is under the dash and has a gray cap covering it.