I have an MG-ZT 190 2003 which was fitted from new with a Kenwood KRC-394 Radio/Cassette with remote steering wheel control via infra-red sender in the eyebrow above radio head unit. I started having problems where the steering wheel controls would not operate correctly. It seems to have a mind of it's own, where adjusting the volume might change the station, or change the mode etc. I assumed this could be that the I.R. sender had moved and was no longer communicating with the radio I.R. receiver. I adjusted the sender position with no success, and then thought that maybe the black sender box ( behind the radio) was faulty, I replaced this with a new one, but no improvement. I changed the radio to a later Kenwood KDC-BT6544U CD/Bluetooth radio with the I.R. sender/receiver system, still no improvement. The only thing left was to change the steering wheel controls with new, which I did - still no change!