Applying styles with aid: attributes in InDesign CC

Hi all

We've been trying to apply different character styles to <bold> inline elements in InDesign CC, using the methods described in the following post, but without any success. Does anyone know if there's something else we can try other than mapping styles to tags, which we can only do once...

http://carijansen.com/2011/02/25/indesign-xml-part-2/

Thanks