No matter, I don't need anything thats not working, and the van is so noisy the radio is superfluous anyway. I can drive it in the dark, thats all thats important for now.
Despite all the apparent radiator leakage, then radiator is full. Apparently that was the overflow tank, which is what the smog test guy thought it was. Its not leaking water now at any rate. I just came back from Kragen's (again) with a case of oil, which as I now remember I always used to carry in the van when I used it more often.