NHTSA Complaint #10068052 — 2002 INFINITI Q45

A FEW WEEKS AFTER PURCHASE OF MY 2002 INFINITI Q45 (UNDER 4000 MILES)DURING AN EXTENDED ROAD TRIP, I LOST ALL CONTROLS ON MY A/C AND AUDIO SYSTEMS.IN A SEPARATE INCIDENT, I ALSO LOST CONTROL OF MY CRUISE CONTROL SYSTEM. AFTER STOPPING AND RESTARTING THE CAR, THE SYSTEMS WERE RE- ACTIVATED. WITH THE EXTENSIVE COMPUTERIZED SYSTEMS ON THIS CAR, THIS COULD HAVE BEEN A MUCH MORE SERIOUS PROBLEM! I REPORTED THIS PROBLEM TO MY DEALER BUT THEY WERE NOT ABLE TO REPLICATE THE PROBLEM. ON ANOTHER LONG TRIP,A FEW THOUSAND MILES LATER,BOTH PROBLEMS REOCCURRED. THIS TIME MY DEALER ASKED TO KEEP THE CAR FOR SEVERAL DAYS DURING WHICH TIME THE SITUATION DID REPLICATE. THE TECHNICIANS TRACED THE PROBLEM TO A DEFECTIVE RADIO(?) WHICH THEY REPLACED. LESS THAN 100 HUNDRED MILES LATER ON A HIWAY TRIP, BOTH CONDITIONS REOCCURRED.THE CAR IS BACK IN THE SHOP!I HAVE ALERTED INFINITI CONSUMER AFFAIRS FOR THE SECOND TIME OF THIS PROBLEM . THEY ARE SAYING THEY CAN'T FIX IT, IF THEY CAN'T FIND THE PROBLEM!HELLO!!!ANY ADVICE WOULD BE APPRECIATED. I CERTAINLY DO NOT FEEL SAFE DRIVING THIS CAR. WHAT CAN HAPPEN NEXT?