Mopardan

After a solid week of 90 degree days in my black grand cherokee w no air I finally broke down and attacked replacing the evaporator. We tore our the dash and AC box in four hours of contortion and cursing. With the evaporator replaced we started plugging everything back in- BUT there's a problem- there is a small white male plug w a white wire w black tracer and a green wire with white tracer that appears to route to the drivers side of the heater box. We looked high and low but can't find where this plugs in. I'm hoping it is an unused accessory plug we overlooked during disassembly but am afraid to button thing up only to have to return to this plug later. Can anyone shed some light on this for me- please.