Wiring OMC gauges

[nutgunaspu]

Hi Guys, I've just fitted a used '92 140hp Johnno to my boat and it came with OMC trim gauge, hourmeter and temperature gauge. Got em fitted OK, but stuffed if I can work out how to wire them up. Got a manual for the motor with wiring diagrams, as well as info that came with the gauges when new but still I can't see what colored wires to connect to to get the gauges working. Any ideas???
Thanks

[Noelm]

the trin gauge should be a plug in set up, the hour meter is connected to the ignition switch so any time the key is on, the hour meter runs, and the temp gauge may need some sorting out, as it was not a standard item, but an accessory, but it will not be too hard if you have a wiring diagram.