Installing Yamaha 1996 c115txrw/which harness,guages do I need?

[Blackfinstevie]

Our old DT115 2 stroke Suzuki died. Father giving us a 1997 2 stroke 115 yamaha and a flush mount (side) control box (not a 703). I know I need the harness part with ignition key and harness from motor to guage (s). The control box does not have a harness on it, only tilt and neutral safety?? wiring. Can anyone tell me what guages or guages I need and part #'s of harness(s) I need? Any help much appreciated...Thanks

[boats.net]

The 703 control box should have a short harness coming out the back with a yellow, red, green and black wire to connect to the 6Y5-83553-N0-00 Fused Gauge harness
The C115 only needs an analog gauge, you can use Yamaha's 6Y5-83540-14-00 Tach and set tach setting for 12 pole alternator.