2001 740il cd fades with static
hello forum, my first post. my audio system had worked okay until recently. i bought it with the tape deck not allowing insertion, but the radio, cd, and nav worked. for the past two weeks, the cd has started to fade with static, and now it rarely plays music. it does register the cd position and track, and it may play for a few minutes.
i thought it may be the ignition switch, so i replaced it to specs i think. this didn't fix it, so i then addressed the lose negative cable and weak battery. recharged teh battery and replaced the cable. still no sound, so now i'm hoping someone can tell me how to clean the cd changer, or how to remove it. any help will be greatly appreciated. i'm really trying to do all repairs myself.