Replace an old Philips CAR400 radio/cassette with a new Kenwood MP3/tuner
head unit and all works well, *except* the Nokia car kit has a problem
whereby you can't hear the incoming call through the car speakers; this used
to work perfectly with the old unit.

Someone suggested the car kit was utilising an AUX input on the old unit but
I can't find the pin-out for the ISO connector(it's a 3 gang type as opposed
to the Kenwood's 2 gang). Any help appreciated.

Jim.