2007 STi Cluster in a 2007 WRX
- Trim the (A) green plug so it can slide on.
- Move the B28 wire to B16. (Cruise)
- Ground B4 pin (Diff light)
- Cut the C9 wire (buzzer)
- (Dimmer)-Connect a potentiometer between pins b20 and b22 on the cluster. The wrx harness does not have any connectors on these pins so all I did was shove the ends of the wires into the empty slots and secured it.
With the headlights turned on you lower the brightness of the cluster until it makes a sudden drop in light (this is the night setting)....when you turn the headlights off the cluster goes back to the brightest setting. This is the potentiometer I used http://www.radioshack.com/product/in...entPage=search