RSS Auto Discovery

[Yakudza]

I've been doing web dev for years, but this is my first jump into XML. I've created an RSS feed and I cannot figure out how to get the browser to "discover" my feed and display the little RSS icon in the address bar. The website in question is: http://www.aurorafxstudios.com/blog and my RSS feed is at: http://www.aurorafxstudios.com/blog/rss.php ...any help would be greatly appreciated. Thank you!