Hi all, I have just installed an RCD510 and did the wire switching where you change 3 wires in the blue plug to make the original ipod connector in the armrest work. It does seem to work and charge but sometimes it goes crazy starting as stopping the music, and has a lot of alternator whine in the back group and general humming. What can I do to sort this? And if I get a MDI in the future will it definitely not do this?