ok so i picked out the body kit, paint color, dash/door trim, interior glow, rims... well i did the search thing but i'm looking for more of an explanation kinda answer. example: there's gauges that measure water temp. and whatever else that sit in the dash or off to the side, and they come in different colors ... why do you need them??? yes it measures water temp. i get that. but i want the actual reasoning behind it.
don't lose patience with me i'm just curious.

... i am serious, and would really like to know.
you can go to carsponsors.com or carsponsorships.com; one of my sponors is bodykits ect. (
www.bodykits.org) and you get sponsor deals on their products and stick their decal on your car for a year. now through carsponsors.com when you go to a car show if you win a trophy in the category of one of your sponors (say best rims) carsponsors.com will send you a check for what you paid on those rims. there's more fine print to it if you're interested. as far as i know i'm the only female with a protege` 5 total stock car who is sponsored. i know this because there is a search for sponors to look for our car and you automatically get a profile when you sign up. there isn't a way around it, and so you can see who else has a car like yours on there...
as far as audio goes my husband installed Memphis Audio stuff.. the sound quality is beautiful..