How to install Variable Trolling RPM Switch on F115

[TrueGRT]

Hi everyone,
after considering a kicker for some time I have decided to give the brandnew option of installing a Variable Trolling RPM Switch on my Yamaha F115 outboard.

Yamaha website says:
No gauge required now for easy control of Yamaha's variable trolling function.

• Increased VTS functionality; now adjusts RPM without the gauge
• Compatible with F25C through F115 and VF115 (remote control models only)
• Helm-mounted remote switch connects to tiller handle input on the outboard
• Another way to make fishing (and boating) easier
• Includes switch, mounting plate, 4 SST screws, and harness
• Harness Length = 26 ft.

I ordered it and the picture below shows you what I received for my ~$200 last week:

A cable, the switch itself and a mounting panel with screws. Thats it. Nothing more, nothing less, not a single piece of paper with it.

I read somewhere that it needs to be plugged into the motor where the tiller would usually go if one used one. I found 3 possible cables to connect to in the motor. I have no repair manual, so I wanted to ask if one of you knows more and can help me. So this is where I think it goes...

I am basing my guess on the cable colors, which match the ones of the switch, as you can see here...

Any thoughts? Any help is much appreciated!
Happy boating everyone!!!

 

[TrueGRT]

So...I have connected things as described above, and YES, this is how its done.
I must say that the effect on the F115 is quite minor though and I cant go below 5x100 RPM. I assume the switch might work better with a smaller motor, anyways, it does what its supposed to do and for the price I would say its a solid alternative to a kicker.