Support Display Advertising – google analytics

HI,
I’m trying to use the demographics, age, gender function in google analytics and google ask me to modify my tracking code.

As the tracking code is managed with All-in-one SEO I don’t know where i can modify the code accordingly to google requirements.

Maybe someone can give me directions ?
the google guidelines are here : https://support.google.com/analytics/answer/2444872?hl=en&utm_id=ad

http://wordpress.org/plugins/all-in-one-seo-pack/