Amazon music and search function over CarPlay

Hi and thank you for your answer,

I try to explain better (english is not my native language).

When you search a song or an artist using carplay and apple music (without touching the phone 'cause you are driving) you activate Siri and ask for a specific song, album, singer)

When you try to do the same thing using amazon music you cannot use Siri and there is no manual search field. How can you ask for specific content? I tried with amazon support but they say that Siri / manual search over Carplay are Apple limitation.

This is the reason why i'm trying my way here with the community.

Thanks again for your help

PS: i used the topic iphone because i could not find a Caplay specific topic