Unhappy Bluetooth stuttering while charging wireless.

Hi,

Ive installed the Nexus wireless charging pad, in my car. It charges and works fine, but when I play spotify the music stutters all the time. Might get 3-4 min of clean music, but then it goes back to stuttering. I tought at first it might be because of low signal to the 4g network. Ive checked with full signal strenght and it still stutters. Tomtom even stutters when I use it with voice directions, and that app is offline.

Anyone got similar problems, or know how to fix it?

Cheers!