Parenting Unplugged Radio Interview
Steven Svoboda was interviewed by Todd and Laura Mansfield of the Parenting Unplugged radio show on June 1, 2011 (link).
You may have to first stop the latest show from playing by going to the player on the right at the top of the page and clicking on the big button, then you can go down and find the interview, Fighting for the rights of children and their Dads, and play it.
The bulk of the interview (the first 28 or so minutes of the 30-minute interview) does not address intactivism as such but rather the loosely related work Steven does to promote gender equity. The last few minutes of the intervew address intactivism.