I know that if you use the WK mechanism to autoplay the audio it will work but I couldn’t get used to it. My problem was that the audio would play but the screen would have already moved to the next item so you are looking at the new item while listening to the last one. This didn’t go well with how I associate the audio with the kanji.
So as you might expect, I tweaked the latest script to control the playing of the audio (if you want audio you should enable it in either my version of this script or the WK settings but not both). The big difference is that if you let my version of the script control it, it will wait on the kanji while the audio is playing before switching to the next item.
Anyway, here is the modified version of the script with audio support: http://pastebin.com/9Z6hM5jg