Step By Step on how to set up a Tivo Roamio with cable card & tuning adapter

Are there any step by step exact instructions on how to set up a Tivo Roamio with the tuning adapter & cablecard. Wherever I look on this site, everyone has different ways that they hooked these components up.   I have my cablecard & Motorola tuning adapter. I have printed all of the cox provided instructions for the tuning adapter & cablecard. But I have read several articles where the firmware of the tuning adapter is not correct and needs to be updated, etc.  So I have my Tivo in front of me along with the tuning adapter. I connect them in parallel using a 2 way splitter.  Which one do I plug in first, do I connect the USB right away, or do I let them both go online by themselves?. At what point do I insert the cablecard ?   The tuning adapter instructions make no mention of the cablecard, and the cablecard instructions make no mention of the tuning adapter.

Thank You