take a standard bicycle brake bowden cable
hook it in to the prepared place
and lead it out via the roundel, one needs to make a few holes
cut and feed the end of the cable end into the middle of the roundel
hi, you need at least INPA (bmw standard tools) to check your module's sw version
I expect that if your DME's sw was never updated there's a newer version available
I can help you set up a laptop with the required sw - send me a pm if interested