Directly from page 3 of the article I linked: There are some wiring issues, which need to be resolved before the Z is roadworthy: the clutch switch, VSS, brake lights, and reverse lights (and hatch release if so equipped). First: ignore the reverse lockout (rear upper driver-side of T56) and skip shift (middle driver-side of T56) connections. Check out this pre-clutch pedal photo: [U]The switch above the brake pedal with two connectors is for brake lights and cruise control--swap this from your brake setup and adjust it for the new pedal. The black clutch switch to the left of the clutch pedal prevents the car from starting unless the clutch pedal is depressed. Connect it to the green and purple/white striped wires to enable. For those of you with a power hatch release, connect the orange/black striped and black wires.
To activate the reverse lights, I bought a new pigtail and tapped into the brown and light green wires in the harness above the trans, then plugged the pigtail's brown connector into the backup light switch on the passenger side of the T56. There are a couple of photos in there that give a good shot under the dash for a reference. If you need any more help just let us know.