Store new PIN

Hey, 

I have purchased Skoda DX (VW MFD1) for my MK1 RS project. Everything works and I also have PIN to unlock the satnav unit, but from what I have read on different forums when the instrument cluster and satnav unit are "paired" the PIN is stored in the cluster and therefore can unlock satnav automaticaly when battery is reconected (now the satnav ask to input PIN manualy), I have found that power ISO connector was missing K-Bus and GALA pin (I have found them cut off behind the Climatronic panel), so it should be ok. Is there a metod to try code satnav PIN into instrument cluster or will it do automaticaly?

Also other question, my SkodaDX is version B so first CAN version, is there something to gain if I run the cables for CAN (original RS steering wheel doesnt have any buttons and instrument cluster is 3DColorMFD swapped)?