Audio Systems: help!, electric antenna, volt output

Question
I am trying to install a old Kenwood in my 92'Dodge. I have the wire harness for the truck but the kenwood wires are unlabeled. can you help me find out what wires are what from the kenwood.

Answer
red power ignition
yellow power battery
black ground
blue electric antenna 12 volt output , don't use if no electric antenna in the vehicle

gray
white
purple
green

are the speaker wires the black stripe is the negative

good luck