Does anyone know how to find out who the zone or district manager is for the san diego area nissan dealers. I just took my 04 z back for the 10'th time with a serious leak, yesterday I had a good 1/2 inch of water behind the drivers seat, the top has been replaced and they have thrown up the hands and said they don't have any ideas left. The water went into the rear speakers, the dash drivers seat and floor and now smells musty. I am done dealing with the service dept and the general manager of the dealership will not return my call. I see no alternative but to contact someone who is over the dealer. Any help would be appreciated.