Auxiliary heater circuit for GMC Suburban K1500 (1985-1999)

1995 VFTC BLK WIRE BLOWER MOTOR (BEHIND LEFT REAR WHEELWELL) BLOWER RESISTOR BRN WIRE CONVENIENCE CENTER (UNDER LEFT SIDE OF I/P) DK BLU WIRE FUSE BLOCK GRY WIRE HIGH BLOWER RELAY (ON AUXILIARY HEATER MODULE) HOT IN RUN HOT IN RUN A/C FUSE HOT W/HEADLAMP SWITCH IN PARK OR HEAD ILLUM FUSE 14 LOW BLOWER RELAY (ON AUXILIARY HEATER MODULE) LT BLU WIRE MEDIUM BLOWER RELAY (ON AUXILIARY HEATER MODULE) OFF LOW MED HI REAR AUXILIARY HEATER CONTROL RED WIRE RR HVAC FUSE 5 UNDERHOOD FUSE/RELAY CENTER WHT WIRE YEL WIRE