I decided I wanted subs n my friend has them so I figured I'd let him do it since he had some experience well we took the stereo out and get ended up cutting the stereo wiring harness to the stock stereo there were 18 wires, majority were to the speakers, they ended not needed to b cut at all well I decided to ditch the subs but now what do I do I have no stereo or music would a professional be able to fix it, he tried to but now it sounds like crap I can't even blare it even a little with out it crackling or rattling I jus want it back to normal
All the wires should be different colors so matching the colors should get the wires spliced correctly.
I'm a little confused because of how you worded it, but If i'm correct, I think your problem is that you cut the normal cables that connect to the stereo. Either way, You can always reconnect the cables you cut by crimping them (Google it if you don't know what that is) by using crimp caps or splice connector caps It's really not that hard, the only pain in the *** would be crimping them in the location where the stereo goes because the cables can't come out of the car. You also said it was a stereo wiring harness, so the harness should be able to come out of the stereo. Just crimp/reconnect the cables together and it should sound like usual and start over from there. If you bought a aftermarket stereo, then you should get a vehicle specific stereo harness (like honda civic, lexus blah blah blah), attach it to your normal stereo harness and attach wires by color to color (grey to grey, white to white, purple to purple you know)
