I have a 1994 Cadillac Eldorado (trunk room reference). I have two 4in speakers in front (150 watt peak 60 constant), two 6x9 on the rear deck (not sure the specs because I got them free from a buddy), and two 10in subs in my trunk. All of which are Sony. The subs are Xplod 1100 watt peak. My...