Audio in HFP for google maps

[op3am]

I am a noob and feeling my way around I not even sure if this is the right place to request this,Moderators please feel free to shift the post if reqd.

Directions from google maps are sent to the car speakers over media profile ( It works only when playing music from phone over BT where it stops or lowers vol of music and calls out the directions over the car speakers). I would like to make a flow where the directions are given out on HFP (Hands free profile like a phone call that rings where by when ever google maps needs to give a direction it pauses the music as what happens when we get a phone call when any other media is used to play music on the car.

Is there an action for this already is yes which one. below are the steps for flow
1) Trigger - BT connected,
2) Condition - Music not playing on phone
3) True Action - All audio from phone routed on HFP (Telephone call profile)
4) False Action - Audio routed to BT as usual