I installed the system today. Took a long time and still haven't gone yet. I left the middle out since it might mess up the sound image.
I put in the 5510, mb quart component (qsd 216) front, mb quart rear, boston acoustic front dash.
Going to put in the pioneer 12" thin sub and box & JL 250/1 amp. Ran wiring for amp already..just need the box for sub now.