stereo help

can anybody tell me what kind of stereo/CD player would b esiest to wire in with the factory wiring. i also want speakers, but dont really feel like doing new wiring just to get it to work with a new headunit. If anybody knows what would b simple wouldnt changing the wiring please let me know.

i just bought and installed a pioneer deh-6900ub head unit (very nice) costs around $200, but pretty much any headunit will wire in easy to the factory wiring if you buy a wiring harness for the model of your car. over at sonicelectronix.com (where i bought mine) they give you a wiring harness free with purchase of most head units