pretty sure someone has tried the dual havc as well... want to say it was the folks that were doing the headunit conversions. i could be wrong on that since my brain is exhausted from yesterday, but i'm almost positive someone else tried it and it didn't work.
i don't understand why you don't just order what everyone else is that is proven to work. there doesn't appear to be a look change from the thing so why do you feel the "need" to have the other model? the controls in the one linked in the first post looks just fine in the car. it appears to look more like the 07+ controls and not like the 05/06 styled controls. which if you ask me... it's better that way.