Thank you so much for these tips. I learned some interesting things and took good pictures.

As a BMW noob (2 years with my E53) I mistakenly thought 100% of the radio system was in the battery compartment. I found the amp connected and sitting loose by the left compartment. There is a silver box with the purple plug in Photo 2 just outside the left compartment - what is that/is it related to the audio system?

At this point, I am thinking it may not be practical to disconnect the amp without major surgery and that it has the crossover in it? Or there are other remnants I didn't understand I have?

There are tons of plugs plugged into nothing in the photos.




1) Inside of the Left Compartment


2) Just Outside of the Left Compartment


3) Amp Sitting Loose Inside Left Compartment


4) Amp


5) Battery Compartment High Level Shot


6) Head Unit Harness


7) The Blue Cable Was Added By The Previous Owner and Goes To The Head Unit With Speaker Wires, Power, Ground, Etc.


8) Manual Trans Cluster At Night (someone asked :-))


9) Put The Hammer Down!