6 Pins / 5 Wires
Using the locking tab as a reference, have it facing down and work from left to right.
1: Vehicle Earth / Ground (separate earth, directly to vehicle ground)
2: Relay - Connect to your relay or accessories (blue on STEDI harness)
3: Earth / Ground (black on STEDI harness)
4: Source - Connect from your source with an inline fuse (white on STEDI harness)
5: Dash Lights - Normally connected to dash light circuit to be on when your dash lights are active.