TURBO TIMER HARNESS | ELECTRONICS | PRODUCT | HKS Take out the key switch wiring connector and connect the HKS Turbo Timer Harness for easy and reliable connection. We recommend using the HKS Turbo Timer Harness with HKS Turbo Timer for best performance. ACC(accessory) might not work at the timer operation if used with other company's harness with HKS product. hks harness | eBay Find great deals on eBay for hks harness. Shop with confidence. Skip to main content. eBay Logo: 2 product ratings - HKS JDM Turbo Timer Wire Harness MT-1 4103-RM001 for Eclipse 3000GT Galant Talon. $21. FAST 'N FREE. Trending at $23 Trending price is based on prices over last 90 days.