Hello, I hope someone outhere can help me. I bought a used Sx4, and last week my car battery died. When I managed to start the car, radio displays "system check" and then "code0000". I have tried with no sucess: Calling previous owner, wait, press tune knob, insert common codes, and I'm afraid that there is a last chance for insert code. Official service (here in Chile) charge me 110 USD. Suzuki stock radio Model No: PS3230 Serial No: 0038601 BarCode: PS3230KA 0038601