........for all Acura vehicles, but they are very very different in their user interface and fuctionality. IMHO, the Acura OEM is far superior to the Alpine in coverage and functionality - and trust me, I've used BOTH extensively!!
If you must absolutely get an aftermarket unit, my strong suggestion would be to go with the Kenwood KNA-DV2100 DVD Navigation system. It's IDENTICAL to the one used in Lexus vehicles, both of which are made by DENSO