Hi. My husband had to replace the grommet round the radio aerial on our 2001 Z3 1.9 today. and naturally had to unwire and rewire the aerial during the process. He now needs to in input the radio code number again The handbook says to use the station buttons 1-6 to input the 4 digit code number. For example if the first digit was a 3, then press station key 3 and so on. However this is proving difficult as one of the numbers for our code is a 9. Anyone knows how we can input a 9 at all as the radio numbers only go up to 6. Thanks.