I have just tried fitting my new Columbus in place of the Bolero only to find that the twin connector on the Bolero which is just two metal pins is different from the Columbus which has the pins enclosed in a plastic connector. Can anyone point me in the right direction for an adaptor.

The Bolero doesn,t have just 2 metal pins.Its the same as the Columbus.The outer plastic has probally broken off and is in the aerial plug itself.Have done this before and they can break easily.

This is the back of a Bolero:

So that's exactly how the back of the Columbus looks as well. In that case the complete white plastic must be on the aerial lead, so I will re check. I had found this and thought I needed to change.

http://www.ebay.co.uk/itm/VW-MFD3-RNS-RCD-510-310-315-210-radio-antenna-aerial-adapter-Seat-Skoda-Columbus-/251099055949?pt=UK_In_Car_Technology&hash=item3a76ab874d

Storm chaser

Big thank you. That's exactly what has happened. All up and running now.

Good to hear