I haven't given up at all, Phil. I've just been working at this as I mentioned I would. And it has been a while since I've done much fiberglass work.
Bill, yes...there is a + and - connection for right speaker and left speaker plus a + and - connection for either 6 or 12 volts of power...or more probably up to 24 or maybe 27 volts. There is a voltage regulator chip on the board which reduces incoming voltage to 5v. So, to answer your question the speakers (and 4 ohm should be ok) will have wires and plugs to connect them. I may have seen that book, actually. There was an engineer working at TI who lived above me in the apartment building and he loaned me an interesting book about speaker design. I'm pretty certain it was blue also. This was a long time ago, however.
