It is easy to integrate Metrics into your Google Analytics account.
Step 1 - Select "Integrate Now" from your Metrics Dashboard
From your Metrics Dashboard, click the Integrate Now button under Google Analytics in the right side bar.
Step 2 - Enter Your Google Analytics Profile ID
You will now be brought to a new page where you can enter your Google Analytics profile ID/UA Code.
You will now begin to see your Metrics reporting in your Google Analytics reports.