Sorry, I've come to this post late but it's worth noting that there are companies that will repair a whole range of electronic components across a variety of manufacturers. They often offer lifetime warranties and a repair tends to come in at a fraction of the cost of a dealer sourced new item. This is an example of an Amundsen rebuild for £250 plus carriage:
https://www.ecutesting.com/product-catalogue/skoda/yeti/navigation-and-entertainment-control-unit/nec315119/
The procedure to remove and refit the unit is straightforward and the only tools required are a plastic trim removal lever and a T20 torx driver. If you're unsure, there is an explanation on YouTube here: