creating a new a name record to point to AWS instance on port 4502 / 4503

I am trying to create a new A name record to point to my AEM instance on AWS.

On AWS AEM is installed on port 4502 and 4503. Author is on 4502 and publisher on 4503.

But I cannot create a A name or C name record that points to the ip address of the AWS e2 instance the add :4503

Can anyone suggest a way around this? should I be setting up something else within AWS that has a new IP address that points to the other one with a port?

I have other things setup on this AWS instance that uses port 80.

I appreciate the help as I am pretty new to all of this.

thanks in advance