I have a Rheem compressor outside and a Rheem Gas Heating unit inside . Ineed to know how to wire up the compressor unit to the heater blower unit . There is two wires coming from the outside unit and going to the heting unit . One wire is red and the other is white??

They will hook to c and to y on your control board inside the furnace.

It will not make a diff of what color goes to C or Y with a two wire hook up its not polarity correct. Make sure to turn the power off to the inside and outside system before doing your work.