LJ70 refitted with stock CT20 turbo (supercharger removed). Need turbo pressure switch.

[Si LJ70]

Hi,

Spent quite a bit of time removing a pointless supercharger from my LJ70 and replacing it with a stock CT20. She runs much better now and no annoying whine from the SC. I would like to refit a turbo switch but not sure of the part number or how/ where to fit it. Any photos anyone?

Cheers,

Simon