Hello. Im looking into the possibility of buying a yatour interface from ebay that has usb and sd card reader( its like a xcarlink) to use with a concert II+/III (i never know the name of the model of the radio). But i had a few questions that i couldn't find a correct answer beore buying : 1 - I have OEM bluetooth on my car. Will adding the interface disable the bluetooth in some way ? Having in mind that this is a regular interface without bluetooth. 2- In a concert II+, will the interface show the names of the songs or just "track 01, track 02,..."? With a mp3 cd it does show the track name and i have seen in a video of a usb interface where it shows the track name, but in others it doesn't so im confused =/ 3- This is unrelated to the xcarlink/yatour but with the oem bluetooth. I have an iphone that i connect to the oem bt and everything works fine when i make calls but when i receive them the ringing sound plays in the speakers but when i press "answer" on the iphone the sound goes to the iphone and not the car speakers. Anyone with the same problem or with a solution? Maybe its because i answer on the phone and not on the radio but the radio doesn't have a answering button. Thank you!