The thing behind the CD changer compartment in a 1997 BMW 528i is called a jack.
It is located in the glovebox.
On the back of the housing
If your x5 is equipped with a CD changer, it will be located behind the driver's side panel in the very back. This is not standard equipment, however.
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In the trunk on the passenger side behind the panel for the CD changer.
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If your CD changer in a BMW E46 M3 isn't working, it could be due to several factors. Common issues include a blown fuse, a malfunctioning CD changer unit, or a problem with the wiring or connections. Additionally, if the vehicle's head unit isn't recognizing the changer, it could be a compatibility or software issue. Checking these components can help diagnose and resolve the problem.
With some basic technical know how,installing the Pioneer CDX FM687 CD changer should be an easy tsk.
A local electronics outlet like Best Buy typically charges about $115 to install a CD changer.
To operate the 6 CD changer in a 2001 BMW X5, first ensure that the vehicle's audio system is powered on. Insert up to six CDs into the changer, making sure they are oriented correctly. Use the radio or CD button to switch to CD mode, and then use the controls on the dashboard or steering wheel to select the desired track or disc. You can skip tracks or discs using the corresponding buttons.
it is on the left side of the trunk behind the CD changer.