I have just upgraded my car stereo from a phillips 400 to a phillips ccr600. The 600 can play cds and the 400 can't. I have also a Blaupunkt cdc2 which is a 6 cd changer. These were standard in higher range of the vauxhall cars. I have codes both for the head unit and the cd changer. What I dont have is the connecting lead between the two units. Does any one out there know where I can get one and with the proper plugs on. Thanks