Hi, recently purchased a 2002 X5 3.0 which I am loving - also have a E39 535I. When we purchased the X5 it had no CD changer but has the DSP amp. Have since purchased a used CD changer which works well with the head unit but am having real problems finding the DSP Coax Cable to connect the changer to the amp. I have some feelers out there with a number of dismantlers but no bites yet. Does anyone have or know where I would be able to purchase a coax cable?? Hope to have some positive feedback - to all members all the very best for the festive season and a safe, happy and healthy 2013. Tony