I have a Sony head unit, and a connects2 DOPS002 display driver

I have bought a very late pre facelift MV6 with a radio cassette phone
changer control

Now for the interesting bits

The standard system does not sound good, but has steering wheel controls and
also accepts Traffic Master inputs

I don't mind buying a new CD changer

1) Does the DOPS002 fully integrate with the steering wheel controls?
2) How does Traffic Master talk to the H/U?

These are to start with.

Thanks