powering tweeters and other things?

Hello,        I have a few questions about my designing an audio system for my car. Let me first provide all the specs: -Pioneer head-unit (some CD player unit) -Pioneer DSP unit (took awhile to get I think its a DSP9200) -(4) 6.5 Pioneer speakers - Stock tweeter and stock 5x7 subwoofer and amplifier -1994 Toyota Supra I plan on adding: -(2) 12in Subs (probably Pioneer just so that they match) not much room for anything else in a supra w/ targa top -(1) amplifiers to power the subs -(1) capacitor -(2) 6x9 Pioneer Speakers -(2) tweeters? power tweeters? need crossover? I am unsure exactly how to power those 120W tweeters....how do I do it? Do you think I need an amp to power my speakers? If so can I share it with my tweeters? Can I split a 4 channel amp to handle 6 speakers and 2 tweeters? I plan on building a fiberglass box and stuff when I have the time....also plan on swapping out the CD player for a 6.5in Pioneer Pop out screen.... Any kind of input would be appreciated! Thanks Alan

What are your ultimate goals here? How much do you want to spend? Are you ONLY interested in using factory locations for everything? Are the 6X9's two or three way? If so, why do you feel the need to add additional tweeters? Were you planning an amp for the highs in the system, or were you going to use all deck power for that? Who told you that you need a cap? Why do you think you need to add even more full-range speakers, let alone additional tweeters? My personal opinion is that they way you have your system planned, it isn't going to sound very good... not good at ALL. My opinion shouldn't matter to you, but without knowing what you REALLY want to end up with, none of us are going to be able to help very much. Help us out a little bit, by answering the questions I have asked...It all reminds me of something that Molière once said to Guy de Maupassant at a café in Vienna: "That's nice. You should write it down."

Your pioneer component speakers should of came with a crossover. and if the vehicle came with stock component speakers you MIGHT be able to use the stock crossover, but it would probably sound like crap. id buy a new good crossover and use that.MECP Certified

(2)Infinity 3.5" 3012CF

(2)Infinity 6x9 9612I

(1)Sony CDXGT710

(2)MTX TC510 and,

A load of dynamat!

1982 Chevy Cavalier

"Pioneer DSP unit" The DSP9200 is a line level unit. You are going to need outboard amplifier(s)to use it. Not a huge Pioneer fan. Sounds like you need to take a trip to your local dealer and get some opinions and listen to different gear. Can't go wrong with Eclipse.