David, like many others I bought the Connects2UK adapter and I know this one DOES support the "pause" feature (allthough I was told it didnt by a fellow cliosporter) but its not actually a pause it just toruns the volume most of the way down, almost a mute but I think the Sony headunit needs to support this.
I also removed the dash and it made installing things a bit easier, I was able to fix the connects2uk box so that it wouldnt rattle, I also needed to route changer cables tho. If you remove the dash disable the passenger airbag with the key.