Are you talking about the original factory installed adapter? It is probably not going to help as if converter is not working, most likely the adapter that you have does not have the Apple chip. Suggestion is to try the original Apple converter (30-pin to Lightning). If it is not working, the only way is to go with the aftermarket.
If your stereo is non-navigation, and SAT capable, our GROM USB3 for Nissan/Infiniti will work:
http://gromaudio.com/store/usb_adapters ... nis02.html