I had the same problem. I didn't want to cut the stock harness to put in the new stereo, but I didn't have a 9-pin plug either. So, I wired the speakers (which I also changed) with my own wires, just running them along the stock lines for the front and back. This is really better than using the stock harness, because the original design shared speaker wires. One wire is common for both the front and rear speakers on each side. This goes against most stereo installer rules. Besides that, you can run thicker wire to the speakers, which beats the stock 20 AWG stuff. Everything I have done on my car has been "on top" of the stock system. I just run my modifications along with what's already there, that keeps things original, and allows me to upgrade certain systems. Good luck!