Fuse/Relay Panel - Rear Connections (Volkswagen Part Number 171 941 821 D) Connections and plugs on rear of fuse/relay panel: A Blue 28 pin Instrument cluster wiring harness B Red 28 pin Instrument cluster wiring harness (position 5 open) C Yellow 22 pin Engine compartment/engine management, left side (position 10 open) D White 29 pin Engine compartment/wiper motor wiring harness, right side (position 6. 10, 14, 18, 27, 28 open) E Black 18 pin Rear wiring harness (position 17 open) G n/a 1 pin 10 individual circuits H Brown 6 pin Air conditioning/coolant fan relay wiring harness K Neutral 5 pin Seat belt warning system/coolant level wiring harness L Grey 4 pin Horn wiring harness L Black 4 pin Headlight/dimmer switch wiring harness M Black 2 pin Steering column switch wiring harness M Black 2 pin Headlight/dimmer switch wiring harness N Red 1 pin Separately fused circuits (glow plug wiring harness) P Red 7 pin 7 single point connectors for terminal 30 circuit R Green 2 pin Open/ECM power supply relay Note: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market. Always consult appropriate wiring diagram for specific terminal assignments.