Tarmac SL6 - Flux S - set up

Hello. 
I am facing  a problem with proper set up of my Specialized S-works Tarmac SL6 and Flux S 2018. 

I got two product below and still strugle with the set up. Is there someone who sucessfully can set up SL6 or SL 7 on Flux S and can advise which products I need and more details how to do.

Thank you in advance. 

https://www.amazon.com/Tacx-Release-Thru-Axle-142x12mm-148x12mm/dp/B01HEF6MFA?tag=trainerroad-20

https://www.garmin.com/en-US/p/729991

I have axle TYPE 1.