The navigation is rear-installed, and the seller claims that the RX series is not equipped with Bluetooth music function. But the funniest thing was when I asked him why the iPhone couldn’t play when connected to the data cable, he actually said that licensed iPhones didn’t support it, only the Hong Kong version or other versions! Is it true that the navigation is after-installed? Sales Fang said that the RX series is not equipped with Bluetooth music function. But the funniest thing was when I asked him why the iPhone couldn't play when connected to the data cable, he actually said that the licensed iPhone doesn't support it, it only supports the Hong Kong version or other versions! Is this true? Mine is also 270. You can connect Bluetooth on the phone, then go back to music and click AUX. Just the one in the last column is fine, aux is fine, Bluetooth is also fine, you need to use iTunes to import a song into your iPhone, which means you need to have a song in your phone, and then the car system will be able to recognize that there is a song in your phone. source, and then third-party software can play it. U disk playback is ok. Just insert the U disk into the glove box and play it. Then connect Bluetooth and play it directly on your mobile phone? Bluetooth aux can be played. It can also be played by connecting a mobile phone to an aux cable. The one I shipped in March 2014 is fine. Just connect it to a Bluetooth phone and the phone can play music. Does the 2015 model support Bluetooth music? It's okay if it can be plugged into USB. I don't know. My 6p seems to be only able to answer calls, but I can't accept non-CD sound quality unless it's FLAC or other lossless audio sources. @2019