thanks for all the help IcESouL, Jet-Lee, and PaulD.. so, just to clarify it up, some of the factory head units DO adjust the music? yeah, my explorer's factory "premium" JBL wasn't premium at all, it really DID suck.. probably to the point where everything came out crap just like you said, Jet-Lee.. but some of the other factory ones i tried it on (e.g. Camry's JBL, C280's Harmon Kardon LOGIC7) were VERY nice systems, especially on the C280.. and yet they still play all the different songs very consistently as PaulD mentioned.. as far as higher-end cars adjusting my CD's songs automatically, i could believe that on the C280 cuz it was an expensive factory option, but the camry and explorer's JBL are 99 and 97 respectively.. the explorer's JBL just plain sucks so i'm throwing that out of consideration, but the camry's JBL was exceptional and exceeded my expectations for a 99 factory system, yet i would still find it hard to believe that it could adjust my CD the same way the C280's expensive system did..
i did adjust the equalizer on my new head unit (took me a while to get it at a compromise) but some of my songs still play with bass that drowns out the music or highs that are to an ear-piercing sharpness, just nothing to an extreme of how it was before when i first installed it and left it at a preset equalizer setting. so right now, is there something i could buy or something i could do to makes these extreme differences a little less severe? or is there no other way but for me to continue using CD-RWs to reburn songs that are pre-edited on the computer after an initial burn and test play?
thanks again
Michael Ni