hca-20 or hcc-20 or 30 pinout?

Hi,

it seems that my new z1010 has a connector problem in that when
sitting in the cradle, it immediately 'acquires' the car hi-fi (as if
there's a call coming in, and you don't hear any music.
when it dials out (which it appears to do ok) instead of hearing the
ringing tone, the flipping radio comes through the speakers!

Sonyericsson admitted to me today that they are aware of this problem
but haven't got a fix for it yet, so, in the meantime, does any kind
soul have the pinout or schematic diagram for either the hcc-20/30 or
the hca-20unit itself?

I'd appreciate a copy of it if possible please.

cheers,


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