Cleaning wiring harness?

I just used the white hand cleaner yesterday on my wiring harness. It's a good start. Problem is that water does not emulsify the soap like it used to back in the '70's. Back then, a good shot of water would have it melt away. These new formula's, in my opinion, refuse to rinse off with water (same when using these cream type soaps on your hands, just won't rinse off, stays kinda slimy).