The cost will depend a lot on how fancy you want to get and who does the work. A more reputable shop will probably charge more but will do a top notch job. I wanted mine to look good but did not need/want a show style setup with fancy lights and crap. My whole setup, front comp speakers, rear deck speakers, dynomat, sub/box, 3 amps, wall to mount them on in the trunk, cap, cables, etc. cost me a tad over $700 just in labor at a highly recommended local shop that has done many show quality setups.