Owning an E46, I saw the post at http://bimmersport.co.nz/topic/50157-diy-e46-retrofit-infrared-to-radio-frequency-remote-control/ that apparently covers my case and seems to contain all the info necessary to do the change desired. However, I myself am not prepared to do such a thing. Does anyone know someone reliable who will do that, conditions to be negotiated? The region would be AKL.