I recently got a Yamaha 90 hp Model 90 ETLH. I have Yamaha 703 remote controls that come with it. I did not see the guy take it all apart and I am at a loss right now. I have to order all new gauges or get old used ones from a boat yard which I have done well I have some not sure if they will work. I looked online and got all the part numbers for the tach, the water pressure meter and speedo for this control/engine. I am mainly concerned about the TACH and the tilt/trim meters more than anything.
I know the main wiring harness(#1 10 pin) goes back to the engine that's easy.

There is another harness(#2 black, grey, pink, orange), bow end= round plastic 4 pin connector, engine end= push connectors with clear plastic.

Then the final harness (#3 green/red, solid green) with bow end= round 2 pin connector that connects into another 2pin connector which goes into a black module box, and engine end= push with clear plastic.

The black module box has the following wires:
( #A yellow black, pink with a triangle push pin connector) WHAT IS THIS FOR?
(#B Green/red, solid green which was already connected to the same color that goes to the engine) WHAT IS THIS FOR?
(#C yellow, yellow/red, green/white, solid green in around 4 pin connector) WHAT IS THIS FOR?

Well I was going to upload pictures with labels from above but do not know how to do this I can email them to anyone who can help me.

I need to know what all the wires re for and to what gauges that they go to. That is where I am lost I can open the engine and see what is missing and plug them into that end. But when It comes back to the controls that Is where I am sketchy. Also there are analog or lcd display meters. Does this wiring harness with the round 4 pin connector make it an LCD Tach meter?


https://www.dropbox.com/s/dqm8fj1sw5...809_230802.jpg

https://www.dropbox.com/s/lczunbt4ck...809_230843.jpg


https://www.dropbox.com/s/89pbvdd01a...809_230739.jpg


https://www.dropbox.com/s/uz7rn16k0w...809_230837.jpg