Thanks for that info Jon, I will look that thread up just as soon as I have these blankety blank wiper blades finally positioned mechanically where I want them.

My question as I indicated above though is regarding my ignorance about the two posts on the back of the ammeter. As I'm tortuously pretzeled on my back under the dash looking up, is the ammeter "load" side the post I see on my right, or the one on my left?

I have researched this a bit to learn up somewhat on just what load means, but in all definitions I've read, it depends on whether your vehicle is negative or positive ground. While I guess there can be either, so far I have no idea 1) what that means and why should I care, and 2) Is my truck negative or positive ground? I suspect negative, but that's just because I have always associated ground with negative. This is a lot to say - but again, is it the left post on the ammeter, or the right post that I connect the radio wire to? -- Many thanks,

Dale