We off the leather cover, then chopped the rubber part off with a stanley knife.. be careful when doin so not to damage any mechanism.. or fingers..!
Then you want to buy an OMP adapter.. its a metal sleeve that makes it possible to fit OMP gear knobs - i know someone who didnt buy the adapter who bodged the job and couldnt get reverse afterwards!! the adapters about 10 quid, have a look on the OMP website and it will be on there. Theres full instructions with it, as you will need to cut some of the stick off from what i remember..!
Hope that helps.. cant remember OMPs address, but im sure if you put it into google it will come up!
fABULOUS, fEMALE aND tOTALLY fLIPPED