I have 2002 hyundai sonata with a kicker 450.2 pushing my interior speakers. i have a set of polk audio 6.5's in the front door in the original location that are rated at 60 rms. when i hook up just those speakers with the doors open i'm getting plenty of sound quality out of them and they sound very good for what they are. get inside the car and shut the doors with 2 people inside and turn them up pushing over 60 rms it sounds like maybe 15 or 20. they are getting drowned out down in the hole by our legs. does anybody have any suggestions? the only thing i can think of is to put a set of 4's or in that vicinty either 2 way up above the arm restrs pushed as far towards the car door as i can. will this take me to the other extreme? Thank you for any help in advance. I am completely at a loss.