Where to buy steering wheel wire harness

Not a main dash harness. Sounds like all you need is the switch that tekslk posted. $70 is a good price, since I used to see >$100. Perhaps someone is making new ones now. Sounds like you changed just the upper plastic cam already. Use a small screwdriver to release the pins from the plastic housing of your current switch. Only a fool would cut the wires, but I see that a lot. You will need run a stiff wire upwards first, then tape your new wires to it to pull them down the column.