I'm not sure why you're lost. I brought up the all-in-one because it monitors everything but the trim. My helm originally came with three gauges RMP, Voltage, and PSI. I do not need those two gauges since the ALL-IN-ONE includes voltage and PSI. So I figured I could replace one of those two with a trim gauge. The other hole I've filled in with a compass. I explain everything in my reply to Slivertip. It's the 4th comment, but I'll copy and paste in here. My serial number is 0G532487
Thanks!!!!
I want to thank you for your detailed response. The wiring I'm am very comfortable with, but finding the correct trim sensor is where I lack the knowledge. Does mercury have a universal trim sensor that mounts on their engine mounts? Or, are their trim sensors specific to each motor? The reason I'm asking is that I installed an all-in-one digital gauge that reads MPH via GPS, RPMs, Fuel, PSI, Voltage, and engine temp. I have all of them working too! My helm originally came with an RMP, Voltage, and PSI, so I have to fill in the two holes where the voltage and PSI gauges were. So I thought that it would be nice to have a trim gauge (for decorative purposes of course).