How much would this cost?!(need help for tomorrow)

I have a 96 Honda Civic Coupe and i want to put an amp in it. The person i bought it from took out his sub and amp. I have my own amp and was wondeirng how much would it be to install. I believe all the wireing is there. How much do you think it would cost just to install the amp.
thx!

BTW i have two Eclipse speakers in the trunk and an eclipse cd player. The face doesn't come off(that kinda sucks) buts its kinda cool i guess because it goes vertical and lets you put in cd's. and i have a kenwood amp..that is pretty big compared to the ones i've looked @ from circut city. I dunno are these things good? (I've never had anything but stock sound systems)

Install it yourself, for free, it's easy with our help. :)

Yeah with 14,972 posts to his name, Kicker1 dont know shit.......