Hi
I have fitted 2 one to my friends B32 & on my own B38
On the B32 using a tank cutter drilled a 50mm hole in the side of the binnacle connected the neutral wire to neutral & pos wire to the live side when the engine on switch is on to start the engine
So that every time the engine is started the clock is counting used an analogue type rather than digital found on e-bay for around £25-£30
Graham
Last Chance
Medway
