58806 sat nav head unit - 'Engine Type' input

I've recently bought a '55 Land Cruiser J120 which had an aftermarket radio

I've since replaced it with an original Toyota 58806 head unit with sat nav & CD changer

I know these can show different things on the screen such as outside temperature ( although there is already a separate temperature display next to the clock )

Looking at CN700 ( 18-pin ) connector there are various 'engine type ver.' pins which I assume are either ignition Voltage or ground to tell the radio what options to display

Can anyone shed light on what the various options are?

There seems to be 4 options which I assume are things like 'option 1 outside temp. trip computer', 'option 2 outside temp. no trip computer', etc.

I would like the outside temp. display with no trip computer if this is possible as I want to add a second temperature sensor and use this as a cabin temperature display