will the pioneer DEH-P860MP (premier) face work on a pioneer DEH-P8600MP (regular pioneer) headunit? everthing looks the same except the logo on the front.
I would say there is a 70% chance of it working. Premier headunits normally have a different pre-amp voltage output, a two-year warranty, and a better build quality to meet the warranty requirements. Not a big enough difference and probably worth trying the faceplate swap.
Although, I can't see why it would be worth doing unless you were unable to find the Premier faceplate (which doesn't seem likely with it being such a new and popular headunit).