HSTuners - Accord v6 Wire Diagram

The easiest way i found to install the reverse gauges was after the gauges are secured to the instrument panel, connect the gauges to the black box. There should be three wires from the gauges and four connector wires from the black box. Connect those. Bring the black and red wires (from black box) through the back of the instrument panel opening when the the gauges are out. There should be three plugs that connect your gauges to the car. The left one controls the power. Connect the black wire from the black box to the black wire in this plug. It is on the back side in the middle. For the red wire, this connects to the red wire on the left back side of the plug. PLug the gauges back in, don't screw them back in yet.

Check to make sure your gauges turn on and off when you turn the lights on and off. If they don't, there is another red wire next to the other red wire, try that one. Once the lights work properly secure the wires. Make sure you have the wires hidden before this. Sometimes the plug gets caught on some other wires when you put it back in and the gauges will turn off. Make sure this doesn't happen before you screw the panel back in.