I have an 2010 Audi A3 1.4 TFSI which I believe comes stock with a Concert 3 head unit with CD player, and an aux jack mounted next to the hand brake.

At the moment I'm using an aux to lightning cable to listen to Spotify tracks off my iPhone which works, but is a nuisance because I need to make any track changes direct on my phone, and I also can't charge my phone and listen to music simultaneously thanks to Apple removing the headphone jack.

I'm curious as to what my options are to upgrade the setup I have and what the approximate costs are for each option.

Are there any cheaper options I can use to perhaps increase the functionality of my setup (i.e. skip tracks from the headunit or without touching my phone), or am I stuck with changing out the head unit for an aftermarket double din unit?