Note: Driving directions might be a Google Maps ranking factor. Google “may look at “popularity” signals such as how often people look up driving directions for businesses with locations that they can visit in person.” Make sure to embed the correct Google Map on yours site.
The best way to link your Google My Business listing to your website is to embed a Google Map of your Google My Business listing.
Follow these steps here:
1. Go to google.com/maps and enter your business name to pull up your Google Business Profile listing.
2. Click on the “Share” button.
3. Click on “Embed a Map”.
4. Click on “Copy HTML”. Paste this code into your website.
5. It should look like this when you are done.
Further Reading: https://en.support.wordpress.com/google-maps/