MFSW questions...

OK, I just picked up a 2005 TDi, great car but missing nav and MFSW.

I did search the forum and it seems retro-fitting both is possible.

I found skodateile.cz, but which MFSW to order? The site seems to list 2, one with phone and one without, but whats the difference between them?

And are all MFSW leather trimmed? Mine is leather trimmed but a little worn so I'd like to fit leather again.

I might need a new steering ecu (SCSM?) but what part number supports MFSW? I have VCDS so will look up my current part number tomorrow morning.

Thanks guys,, top forum BTW!