There are none, that's why I said you would have to rewire them <a new standard speaker>. Sorry, I should have specified a 2-way coaxial 6x9.

Say a Coaxial 6x9 has 2 drivers, the small tweeter driver suspended in the middle over the main driver. The tweeter will have 2 wires that run down and are soldered to the lugs, just as the woofer driver has it's 2 wires, the braided loops, soldered to the lugs. On cheaper speakers, the tweeter usually has a small can-style electrolytic capacitor in line to filter out the lower frequencies, or pass the highers ones depending. A little nicer speakers add a wire coil, an Inductor, to the filtering, too.

Component speakers move those cans 'n' coils into a separate "crossover" box along with maybe a resistor or 2, a safety device, maybe a "brightness" switch, then give you a woofer and tweeter separately.

In any case, the Monsoon amp has it's own crossover<s> built in, and handles the frequency ranges differently, hence the 4 wires to each speaker.

To make a standard 2-way <coaxial> speaker work as a replacement, you would just have to desolder or cut the built-in tweeter wires, removing or just bypassing existing filters or crossovers <the little damned can>, and find a way to extend those wires to the tweeter outputs of the Monsoon amp. Hooking up the Bass or woofer driver is pretty easy as it is probably already soldered directly to the lugs, and you can just hook the subwoofer outputs directly to the normal lugs. So speaker surgery.

I've never tested it with an oscilloscope, but I believe that if you take the total output of the rear monsoon amp, it does not seem to be a full range of frequencies. It seems to be missing some midrange, which is handed off to the front speakers to reproduce. The rear is only the highs, and the lowest lows. This is why I said that nothing that come out of the Monsoon amp is "usable". It's not Standard.

Which is really no problem. Because.

The stock monsoon speakers are crap. Uncoated paper cones, cheap plastic and like 5 oz subwoofer magnets.. so any cheap $90+ set of 6x9's would be able to do the same job, probably better.