Banks uses the OBDII port for several reasons. One is power draw, the other for reverse sensing. You can read those and the comparison against the Pedal Commander
here. In my research, Banks engineered this product very soundly.
Regarding your OBD Fusion, there are splitter cables you can buy. I've not tried one so I can't attest to the functionality. I too have ran OBD Fusion and have found it more of a distraction than a help. The 200 systems manage the truck well and there's no need for the supplemental data.
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