sound level question

[oj70chevy]

Hello, I have a question. first off dont get me wrong I love my kenwood and it sounds really good In my 02 Silverado. Ok that being said here we go, I have a Kenwood flip out DVD system (mod- kvt617 that I love), in the front doors I have Alpine SPS- 600 and factory speakers in the back doors. I also have a Kenwood KSC-WA62RC (information can on this can be found at this link - http://67-72chevytrucks.com/vboard/s...d.php?t=298758). My deal is the bass sound good but the all around sound just does not sound as loud as I would like it to be (and no I don't want my ears to bleed).. My 97 burb with the factory system sounds louder. Of cores there's 2 more speakers and a lot more room in the burb but I would think I should be rocking in my truck. Any ideas as to how I can make my system loader with out spending a load of money? One thing I'm going to do is relocate the Kenwood box from under the passenger seat to under the back seat. I'm also going to swap the in line wires to RCAs for the sub. Any other ideas.

Thanks for your replys.
OJ
Ralph