I dont know what your alloys are like at current - I really like mine - because I have also toyed with the idea of having them dipped gloss black. I've looked into it and I got a quote of £65 per wheel including pick up and delivery!
Alright guys, I have now tried disconnecting both the battery and the Bluetooth module itself for as long as half an hour and the best I get is that all the options come back up, the aux works temporarily and then it all goes back to how it is right now - ie. not working!
Really irritating that it will fix temporarily but then won't work again for some reason!