I cannot believe I had not seen it myself.
I no know that I did nto damage the wires when I had the laternator off

I have the Standard panel, with idiot lights only, no gauges.
Any idea where to get a suitable sensor, so that I can install a gauge. Volvo wants $800 for one.
I used to add gauges to old cars for $25, with scrap yard parts. Do automotive items fit?
I need a two pole unit, since the boat is aluminium and the rest of the engine is two pole.