Maybe try:
https://www.amazon.com/Satellite-Radio-Superstore-Antenna-Connector/dp/B0083TX86S/ref=mp_s_a_1_16?crid=R15FWC7QE1A3&keywords=farka+sirius+adapter&qid=1647229794&sprefix=farka+sirius+adapte%2Caps%2C189&sr=8-16