hey i just bought a hu off ebay this week too so will be installin it this weekend probably.

Anyhow, the harness and installation kit you can just pickup at just about any electronic place(best buy, circuit city, good guys) I just picked mine up from my local tweeters for like $15 which had like 12 wires. Be aware theres different harnesses too, some have more wires than others. As for the dash kit i just picked it up from
crutchfield for like $12. They include all the needed installation diagrams, instructions and everything. You can also pickup the harness from
crutch too and save on shippin, but theres only is 7 wires so is only $7.