Hello pwers ! A.O.A
This well known "SHOQ" of dhuzzz duzz system took place in me and my brother a long time back and finally time came when we both could begin with this 
we have installed entry level system in both cars and we going to upgrade it by time, thanks to pw for having uncountable posts regarding every thing
i didn't made any thread for suggestions as we didn't went for some thing fancy and i already had enough knowledge gained from pw to purchase entry setup
Here is some introduction to both cars setup, your further suggestion etc are MOST WELCOME 
Bro's car " CIVIC 8th gen "
HU: Sony ECLIPSE DVD player
Front SPK: stock running direct with HU
Rear SPK: Boschman RSX-650E
Woofer: Pioneer 310S4
Amplifier: Audio Bank Maniac series EAB-4550.4N 4ch
Running on branded rcas, local made enclosure and thick power wire for amp double of which is locally used not confirm of how much gauge
system is more like SQL type as it delivers good high note bass and clear sound inside cabin 
System needs tuning car is currently out of station will do it A.S.A it gets back 
My car " MEHRAN
"
HU: Alpine CDE-110E ( MP3/USB/AUX )
Rear SPK: Pioneer ( Chinese 1st copy was short of budget thats why
)
Woofer: Kenwood 3010
Amplifier: Rock Mars RM-AT 4700 4ch
Running on local rcas, for powering amp local wire was used but it was doubled :P, and a local box but its working perfect on 37hz notes 
Tuned it today myself after reading multiple posts of Madhouse and splfanatic ( thanks to both of them ) connected my woofer on 3rd and 4th ch bridged and rear speakers on first two channels then tuned it and believe you me sound is much clear now on highs with crispy and decent shaking bass 
Thanks a lot to PW for bearing so much information :), my basic purpose for this thread is to discuss any problem(s) in future i face and get suggestions regarding upgrades i plan for
And obviously all your precious advises and recommendations
Pictures and videos coming in a day.
Regards
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