You'll have to ask Galaxus. Or contact the Kenwood representative in Switzerland directly.

I don't know if you can buy the original power supply, but you can buy a power supply that fulfils the requirements. Output voltage 12V and 2A current (power W). It is important that the power supply has the right plug for the radio, unfortunately there are some similar ones that are not exactly the right size. You should be able to find one with this search: https://www.digitec.ch/de...

Actually no, you should go to a bike repairer, there are some with a shop that can repair almost anything.

Hello,
I have no idea!
I would contact Kenwood or perhaps a shop specialising in electrical goods. They have suppliers at all the major brand distributors in Switzerland.