1990 Honda Prelude Tow Ready Tail Light Isolating Diode 1990 Honda Prelude - Tow Ready Tail Light Isolating Diode System with 4-Pole Connector. This combined diode system features a Y-harness that allows your RV to power the lights on your towed Honda Prelude without the Honda Prelude sending electrical feedback to the RV.4.7/5(23) 1990 honda prelude tail light | eBay www›Search›1990 honda prelude tail lightFind great deals on eBay for 1990 honda prelude tail light. Shop with confidence. Skip to main content. eBay Logo: Shop by category. Shop by category. Enter your search keyword 90-91 Honda Prelude OEM center tail light and garnish STOCK factory original See more like this. SPONSORED.