i am attempting a retrofit in my 98 e430. i have installed my 2.0 comand and was trying to add a fibre optic cd changer model 3198. th cd changer has power and i can insert and eject the magazine. when i select cd on the comand it says no cd changer. also when i insert the magazine the cd does not shift the cd out of the magazine to the cd player. please respond or pm me. thanks.