my suggestion..
HU :
get eclipse 7100(over sgd1000) or pioneer p80(abt sgd700) if u wan to save on budget.
get single din,double din not much nice 1.
speakers u can get eclipse sc8254.
5" so u no need to mod ur existin speakers space.
abt rm900.
rear no need to get,focus ur setup on the front.
sub :
tis 1 really a lot and depends on ur requirement.
actually jus 1 12" sub good enough.
for mi,i like kicker solobaric L5 and i am using a 12 inch.
normally i will tune down for easy n smooth listening.
amp...if the hu is the head, tis is the heart.
i was quoted a diamond d400.4 for abt rm1500 if i remember correctly.so u wun go wrong with this.
dependin on the sub watt rms, u might need to get another amp to drive it.
installation work is also veri veri important.
if u wan nice wiring job(competition),i can recommend u my installer.
if u dun mind 2nd stuffz, there r lots of good stuffs out there in the 2nd market...
for mi,i'm using precision power pcx4125 to power my comp speakers n sub...
HU i have not yet got my desired HU...solowly and am now focusin on my car's performance 1st.
u should have a LOUD SQ setup.
got chance let u try my setup,not perfect yet,but can do.
but wait 1-2 mths 1st, breakin in my eclipse comp now.
