I just picked up one from the car audio shop where my son works as an installer yesterday. Will put it in on Sunday and take pics for everyone to see.
This one is made by Peripheral, and is part #PXGM24. It had dual outlets for 2 seperate inputs.
I'm going to put it in the black H3, but once my wife notices, I'll be buying another one for the white one I'm sure
I will say that it's good to know someone in this situation, because they had it marked up ~300%.