I've recently bought Prius Alpha 2012 and would use some advice. It's a low end model (S/L) meaning that dash got no consumption graphics (charts, etc.) - actually not sure if the G models got better dash. Anyway there is no factory head unit but an aftermarket one from Clarion (in Japanese of course). Interestingly this one does have all the consumption data. I don't think it's possible to convert it to English (at least I haven't been able to find a way). My question is - is there an aftermarket head unit/stereo which can show the consumption and other data from ECU (and is in English)?