auxiliary gauges

I picked up one of those auxiliary gauge clusters (amps, oil pressure, temp) for my 86 caprice 305, I cant seem to find a place to install the temperature sensor all the openings are in use by other sensors are there any other plugs that i dont know of where I could put this? And where can I get at the oil lines for the oil pressure gauge? I haven’t crawled underneath yet to really look
 
thanks
 
Mike

the gauge kit should have a temperature anode that screws into the thermostat housing.

it dose but the hole where it would screw in is already occupied by another sensor
 
Mike