No, I never had logic 7 install. I had a base stereo setup. I have just temporarily upgraded the underseat subs and door mids to the L7 speakers. My plan is to actually get some Focal 100KRS components and 8" mid-bass (Jenherts) and run them of a 5 channel amp. I will use the 5 channel for 10" sub in the boot.
BMW E93 Sold but not forgotten.