Dodge Ram Van B3500 (1996-2003) Manual a/c circuit, rear a/c

A/C HEATER CONTROL A/C SWITCH SIG BLK WIRE BLK/ORG (OR NCA) WIRE BLK/ORG WIRE DK GRN WIRE DK GRN/WHT (OR NCA) WIRE GRN WIRE GRY WIRE HIGH BLOWER RELAY HOT AT ALL TIMES HOT IN RUN JUNCTION BLOCK (BEHIND LEFT SIDE OF DASH) FUSE 7 IGNITION RUN RELAY J/C 1 (BEHIND LEFT SIDE OF DASH) LT BLU (OR NCA) WIRE MED LOW MODE DOOR MODULE NCA WIRE OFF/ HIGH ORG/ WIRE POWER DISTRIBUTION CENTER (IN ENGINE COMPARTMENT, NEXT TO BATTERY) FUSE 7 REAR A/C HEATER CONTROL REAR A/C- HEATER UNIT REAR BLOWER MOTOR RED WIRE RED/GRY WIRE RESISTOR BLOCK WHT OR NCA WIRE