Custom Map for Embed Code

So I am using the github embed code to have a public view of my Tracking devices without the user having to login.

I want to apply my custom google map layer to this, is there an easy way?

To clarify, it is not the default google map, it's the one that allows me to style it.

It's not possible.

But with your script for the frontend, surly the API data can be printed onto a custom .html map?

Obviously with some amount code changes you can do anything, but there is no trivial way of using Google Maps API.