Hello,

Is it possible to change stereo unit from the standard Swing-stereo to Columbus or Amundsen?

If possible, is it hard?

You'll need the GPS part and possibly car motion sensors working as it's not all done just on GPS so you need to check if the proper pulse is supplied or not, iirc it's no longer on the radio itself like the old days and is now a pin in the speedo interface,

 

Personally I'd go aftermarket as some look oem'ish anyway now

 

I had this in my Passt

 

http://www.sony.co.uk/electronics/in-car-receivers-players/xav-602bt

 

£299 at the time.

Yes you can. No it's not hard.

Apart from GPS antenna and probably a new fascia, it's pretty straightforward.

Thanks for your help!

really easy new facia surround / gps aerial or if you got a shark fin on the roof an extension lead 6m & columbus or rns315 with mic with loom I've done it in mine but i already had the rns315 & iv got vcds as you need to do some coding.