When I started I used to have two fosgate 12", two fosgate 8" MTX mids (four of them) and kicker tweets (four of those). pushing them was three amps a Sony (for the mids and tweets) and two fosgates for the subs. I used a sony (when there were good) head unit in to fosgate EQ then followed up with a sony crossover network then into the amps.
Now I down to a alpine deck and some kenwood 6X9. I'd run an amp for the 6X9's but I trying to keep the wiegh of the Mustang under 2750lbs. In the Capri I'm running an Alp. deck w/changer, coustic speakers, coustic six chanel amp and a single Alp 8" type S sub.
Black,79 Mustang mostly carbon fiber/kevlar body, M-2300-k brake kit, full roll cage, maximum motorsport suspension, custom geared 6 speed, 2 inch rear fender flares, 1 inch front, motor being built (no eta). Looks like the Mad Max interseptor and weighs about 1800lbs w/o motor (450hp 351w installed to move the car around)
Black, 82 Capri RS 5.0L, B303, 1.7 rockers, World 180 heads, +150hp N.O.S, Turbo coupe rear end, T-56(tremec tko would be beter), 80 cobra nose