Android Automotive (AAOS) and Google Maps: how to plan route on the PC and transfer it to the car?

A general question about Android Automotive (AAOS) and Google Maps. Maybe someone can give me a tip. If I plan a route with Google Maps on my PC, I have sent the link to my mobile phone and can call up and start the route in Google Maps there on my mobile phone. If I have several routes (e.g. a holiday trip with various stages), then I have created a route with fixed waypoints on my PC for every day in Google Maps and saved the link of each route in Google Notes. This enabled me to access the route on my mobile phone or with Apple Carplay and start the navigation. How do I do this with AAOS? Can I really only save destinations in Google Maps on my PC and then access them in my Volvo’s Android Automotive Google Maps? So far I have found no way to transfer a complete route to the car and start the navigation of this route there. Under Google Maps on my PC I can find places in “lists” (marked places, favorites, would like to go there). tc.). I put on my PC in Google Maps a list of my own “travel plan”, do not show up in the car. … I am grateful for every tip Many greetings and thank you Micha