Does people have experience about free version of Spotify listened via bluetooth and self created song lists? My problem is that not all songs in self created song list are played but only about half of those. Anyone have similar problems? In free version Spotify plays songs in list randomly...

Dear friends, I'm trying to listen music from Spotify (iPhone 5) on my car but I don't know how. My phone is connected to the car by Bluetooth but when I play a song in Spotify nothing is heard. Please help! Thanks in advanve.