Burningfuel: Tim has a very good point (above).

The other factor is that I'm not sure where the part numbers you have came from, but when rigging DTS boats, it's imperative that the WHOLE picture be considered, so that the right components can be specified from the engine to the keyswitch and instrumentation, including controls, remote trim, touch start, and steering (at a minimum).

This is usually configured either with Mercury's tool, or by a specialist that is very versed in all of the components. I can tell you I would use their tool (though I might audit things at the end) as it helps to build the entire system, and helps to catch those items that are easily missed.