I TM09 012 RPO DEFINITIONS Y I C36 HEATER AUXILIARY C69 AIR CONDITIONER ROOF MOUNTED J ZW9 BASE BODY OR CHASSIS 13I INTERIOR TR M LT SLATE GRAY A 24I INTERIOR TR M DARK BLUE 47I INTERIOR TR M DARK RED 60l INTERIOR TR M DARK COGNAC I 64I INTERIOR TRIM LIGHT BEIGE 1992 GENERAL MOTORS SERVICE PARTS OPERATIONS LIGHT TRUCK 53M 1 T 9 000 GROUP 9 6 8 92