For my Avic Z110BT

http://soundgate.com/upload//productdocuments/0606.pdf

Alternatively, you may use any wired remote that is compatible with Sony® wired remote capable

head units; this includes but is not necessarily limited to the following Sony® remote models:

• MRC2

• RC1B

• RM-X2S

• RM-X4S

• RM-X11M

• SON01REM

The controls on the Sony® remotes above will interact with your Zune Device differently than what is

labelled on the remotes. Reference the chart below to operate your remote.

I seem to recall that sony and Pioneer share a lot of IP. Does this not apply for this case?

I used the PAC-TATO and SWI-PS to make the steering control work with my 4runner. The SWI-PS is Pioneer/Sony if I recall.

So what are you asking?