they make a differnt chord from the J&M 2003 to helmet.
J&M chords are proprietary, (that wierd plug at helmet)
you have to buy a new chord for it.
Hondas are 5 prong andf J&M are 6 prongs.
here is several choices including one with earbud adaptor built in.
Siera Electronis is a very good place to buy (my choice)
Hope this helps.
MaxB (who has both)