http://www.ebay.co.uk/itm/Bmw-E82-In...-/121009431813
Would it be better quality to use an aux input such as the one above or bluetooth to play music with an iphone?
Now I thought for sure dock connecter input would be better but after thinking and looking at the cable, even though it uses the dock connector it seems like it still just plays music through the 3.5mm input which means it's using the DAC from the iphone right?
But at the same time I'm unsure how the bluetooth music streaming works. Does the phone transmit a digital signal to the sound system which then uses its DAC to convert the digital signal to analogue? In which case then if the amplifier (is this where the dac is lol) of the car is better than the iphone which it should be, then bluetooth would be better quality .. right?
I don't have much knowledge on these topics and haven't found much in terms of googling, any insight would be appreciated
