Exactly what connections were made during the install ? There is no navigation wiring harness in the non-nav gs. Did you think you could just replace the headunit with a nav ?
i conected 4 conector 2 in climat control unit and 2 in lower in audio system but there left 1 conector which i haven't, also left 2 conectors in up one of them is blue and one is white, where can i get these wiring harness?