yes believe it does, what year is your vivaro? heres the guide on there site, can be abit hit and miss but usually ok http://www.parrot.com/uk/support/installationdiagrams
pull the cover off from above radio and take a look at the back of the radio, if its just ordinary iso's should be fine, or even just try and connect up the parrot and see if it works ok. Usually the problem is the permanent live and ignition live.
no adaptor straight fit. Just make sure the parrot has a turn off delay and says goodbye, then you know your lives are the right way round