1996 Nissan Pickup T-One Vehicle Wiring Harness with 4 1996 Nissan Pickup - T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector. Quickly and easily install a 4-way trailer connector on your Nissan Pickup with this custom wiring harness. T-One connector plugs directly into existing wiring - no cutting, splicing or tapping required. Includes tail light converter. Features:4.9/5(94)Category: Custom Fit Vehicle Wiring 1996 Nissan Hardbody Pickup (D21U) Wiring - Nissan Parts NissanPartsDeal offers the lowest prices for genuine 1996 Nissan Hardbody Pickup (D21U) parts. Parts like Wiring are shipped directly from authorized Nissan dealers and backed by the manufacturer's warranty. Parts fit for the following vehicle options. Engine: 4 Cyl 2, 6 Cyl 3. Trim: Long Body SE, Long Body XE, SE, Short Body XE, STD, XE.