I agree most usages of bluetooth are not going to be good (hence why I said "perhaps"). However I have a Cambridge Audio DAC with a bluetooth adapter that does

I agree most usages of bluetooth are not going to be good (hence why I said "perhaps"). However I have a Cambridge Audio DAC with a bluetooth adapter that does have aptx and A2DP support. Does it sound better than the straight 3.5mm? I think so but that is probably because I think I like (cringe) upsampling :). Of course in the car everything sounds like garbage to me. I don't have the speakers nor the attention span nor the multitasking ability to notice it. That being said interference is always noticeable.