Mercury - Key Switch Harness Kit Non-DTS 14-Pin Ignition Wiring Kit 896537K24. The Mercury Key Switch Harness Kit (Non-DTS 14-Pin) is designed for mechanical outboard installations that require a longer ignition wiring run without transitioning to digital throttle and shift systems. It is commonly used on larger center consoles or deeper dashboard layouts where standard harness lengths are not sufficient. The extended length allows for cleaner routing and helps prevent connectors from being stre