Does a HDMI splitter exist that will split hdmi into video and audio?

I'm trying to hook up a GoogleTV to an older Sony TV and the TV has an HDMI input but just below it are the familiar red and white RC jacks for audio. I remember trying to hook up my XBox and the audio not working and now I'm having the same issue with GoogleTV and I think it's because this was made before the audio was integrated into HDMI or something. I look all though the TV setting and couldn't find a "use RCA jacks for audio option" and was wondering if anyone ran into this before and if maybe there is some sort of splitter I could buy.