[Adrian5]

I recently replaced the alternator, to do so, i disconnected the negative battery terminal. once i reconnected it the mid/radio wont turn on. it allowed me to set the time and date but will do nothing else. any thoughts out there?

 

[QSilver7]

Have you checked all of the fuses to the other components that send data to the MID that is not working since you disconnected the battery? The MID (multi-informational display) is just a simple control device that receives data from various audio/clock/OBC components...and that's where there info is displayed and controlled. If their functions aren't appearing...then check their fuses etc to make sure that they are okay.

 

[Adrian5]

the fuse for the radio tests fine, i replaced it just to be sure. are there any other fuses i should check?

 

[QSilver7]

Did you check the fuse in the actual radio's harness as well as the one behind the glovebox? And depending on how your X is optioned...there may be fuses in the back for the radio...check that fuse index, too to see if you have any fuses listed back there.

There's a 10amp fuse incorporated into the harness that plugs into the rear of the in-dash CD/radio unit:

For example, on my 06 X5 4.4...I have 2 fuses in the rear (72 & 73) as well as nbr 7 up front: