1971-1978 Dodge B100, B200, B300 Fuse Box Diagram 13.10.2019 (US:10.13.19), Category: Dodge No. A Protected Component 1 20 Radio, Horn, Back-Up Lights 2 20 Accessories, Auxiliary Heater, Speed Control 3 20 Heater, Air Conditioner 4 20 Cigar Lighter, Dome Light 5 20 Exterior Lights 6 20 Instrument Lights