Samsung S8 pairing to car and phone book issue?

[srfoot]

Hi;
I have set up my S8 to my Honda 2018 crv and the phone book that was downloaded from my phone is too large.

I have set up a new g-mail account with only 20 contacts in its contact list.

On my phone, I have set the contact icon/folder to my new g-mail account and the 20 contacts show in it.

But, when I sync my phone to the car, it is downloading all of my contacts which I don't want.

How do I get my phone and car to sync and only download the 20 contacts that I want in the car?

Somehow not have it d/l all it is getting somehow from my phone.

Thank you for the hopeful help.

 

[Rukbat]

Delete the old account, sync them, put back the old account.

 

[srfoot]

Thank you.
So, your suggestion is to delete any other google accounts from my phone other than the one with the 20 contacts.
Then I need to factory reset the head unit in the car to delete the prior phone book and cell phone pairing.
Then pair my phone with the account with only the 20 contacts (I don't need to be concerned with any other e-mail accounts, etc. Do this within settings/ Google?)
Then resign up the old google account again within settings/Google.
Turn off sync when connecting to the phone on the head unit in the car, otherwise all will be downloaded to the car again.
Will there be any other complications/losses due to deleting and reinstalling the Google account?
Thank you.