The Amazon Echo is a great device for accessing content using a Prime membership. But the Echo is also useful for media that isn’t sourced from Prime. One of these is Audible, which makes sense, given that Audible is owned by Amazon. I found that my Audible account was around before it was linked to an Amazon account with Prime. In order to link the account, I needed to open the Alexa website and link my Audible account. To do so, open http://alexa.amazon.com. Then click on Music & Books in the sidebar. Then click on Audible and either you will see your Audible books, or you will be able to provide…