Webasto auxiliary heater remote Telestart T91

For the newer style please refer to https://www.thingiverse.com/thing:3323195
I deeply despised the remote which came with my used car because it was such worn and dirty. In addition I did not want to keep it with the keys all the time but to carry it alone it is way to small and could get lost.
So I had to make one.....

You need 2x allen-screws M3x13 (or longer and shortened) and 2x M3 square nuts.

All parts are designed and tested with reasonable clearance so they fit together perfectl