Can anyone help me to install a new hour meter for a 2YM15 Yanmar ('84 h27)? The original is an LED and is integral to the Tack/Control panel. The wiring diagram in the owners manual is not much help and Yanmar wants $1500 for a new Control Panel. I bought a new meter for > $10 online but not sure where to tap a hot line that is only on when the engine is running. Thanks, Tony