adding gauges...few questions

im trying to add an oil pressure gauge and water temp gauge to my truck. where do i tap into?

Oil pressure gauge goes in place of the factory sending unit located just above and to the right of the oil filter. Water temp can go in a few locations - most use the hole right by the thermostat housing.

there is a square plug nut on the intake manifold right beside the factory idiot light water temp sensor.Perfect place for the temp gauge sensor.Hot water runs thru the manifold at that point.bj