Hi, I'm pretty new to this, but am the proud owner of a 66 beetle, albeit with 12v and 1600 engine conversions. And there may be the problem. My wiper doesn't currently work, and contrary to any wiring diagrams i've seen, there are only 2 leads from the original dash switch to the motor which has a choice of 4 terminals. I've had the motor out, and got it working on terminals 1 & 4, but as soon as i reinstall it in the car, it blows it's fuse. Can anyone help?