Maybe figure out which charging standards the head unit and the phone (or other devices) support. Then see if there is a compatible standard between the two. The standard will dictate the kind of cable/connectors you will need.
Below is a chart from 2019 listing the charging standards in existence at that time. (Brings to mind the old adage "It's good to have a nice variety of standards to choose from". Right.)
https://www.digitalcitizen.life/fast-charging-standards