Advice needed with bmw e38

[Sync Master]

Hello fellow forum users, as of today i am new forum user.

And i need help.

I have Bmw e38 98year 730d and i want to upgrade my sound system, basically i think i need 4 highs and 4 mids + a subwoofer in trunk i suppose

right now i have stock speakers and * fli trap twin active 12'' * subwoofers what is supposed to have 800w rms and 2400 peaks, but i suppose its just numbers not real rms because the sound pressure isnt just right. i let proffessionals install it and configure it but still the bass isnt that good, i compared it with my friends 400w rms pioneer subwoofer and it was louder than mine.. :S

so first of all what can i do with my high's and mid/low's

do i need a somesort of amplifier for those?

i would like them to be real loud

i myself thin rockford fosgate is a good choise

for tweeters PP4-T Punch pro 1.5'' what do you think? (PP8?)

as for mid's punch pro 6'' 8 ohm midrange?

and for subwoofer i have thought maybe Ground Zero GZPW 15" spl

i suppose something more cheaper can be installed too

so what do you think and what would you install

my budget is like 500-1000 euros for high's mid's + amplifier(s) for them

so much questions so little time as they say, so i am gonna ask more questions later

btw i live in Estonia