Sir, if I may be of assistance, I was in the car audio industry before and my shop was doing competition vehicles. I even judged at IASCA competitions before. There are some basic questions to a proper sounding vehicle. What kind of vehicle do you use? What kind of music do you listen to? Are you after clarity (proper sound imaging and staging) or just plain BOOM? How much vehicle space are you willing to sacrifice? What is your budget for the system? , etc. These questions are what you could use to guide you to proper sound system design. It is not just a matter of stuffing all your equipment in your vehicle just so you could use them all. You can even be very minimal about it. I did a competition car that had just a total of 5 speakers (2 tweeters, 2 mid ranges, 1 sub (8" at that)) and 150watts of power. And it sounded great and was a even louder than some cars with much greater amplification. Its all about efficiency and proper speaker placement. Sound damping is a great start because it can minimize rattles and other mechanical noise that can detract from your listening experience, thus giving you a more "silent" vehicle to work with. But it is just a start and what you do with the rest of your equipment is very important, especially the speaker placement. If you are an audiophile you would understand the nature of proper stereo sonics, or the proper recreation of the sound stage. This is too technical to discuss here, but my whole point is that before you keep adding and adding equipment look at (or have you installer study) your needs. Do your research before buying equipment or a reconfiguration of your existing equipment may be better. This goes out to others starting our in the wonderful world of car audio and electronics.
