Occasionally I receive emails asking how to connect the drivers, what is wire the color code.
Its being a while I did not open my Cizeks, but I will try to give you a clue how to get that answer.
This method is valid for models I, II and III. If you come up with wire color codes, please send them in!
What you need is an ohm (tester) meter and a 1.5V battery.
Cizek uses an first order crossover. Both drivers are connected in phase.
Disconnect the drivers, wires should not touch each other electrically. Put a bit of tape on the contacts if necessary.
Use the ohm meter to identify the signal path A and B (see picture below). Connect to the ohm meter to the input negative terminal of the speaker (A) and search the other wires. One of them will show clear conduct (0 Ohm). Flip the switch on the crossover and it should still be 0 Ohm. This is tweeter negative contact. Mark the cable with a letter B.
Connect the Ohm meter to the C input and search for a wire having either ~3ohm or 0 Ohm. If you find a ~3 Ohm, flip the switch and should fall to 0 ohm. This is the + terminal of the woofer, mark the cable with a letter D.
Now you are left with 2 wires (E and F) for which you don't know which one is which.
To find F wire adjust the rheostat in the middle position. Use the ohm meter to measure the resistance from the center pin of the rheostat and both ends. Measure on the rheostat, not on wires! The value on both ends has to be the same (about 1 ohm).
Use the ohm meter to measure the resistance from the center pin of the rheostat to both unknown wires.
The wire that has 0 ohm is the F wire. Mark it down.
To confirm, measure from the center of the rheostat the only wire left, the E wire.
You should see values from 0 to 2 ohm by changing the rheostat setting.
Mark down the E wire.
The tweeter polarity is marked so you shouldn't have a problem.
To find a woofer polarity use a 1.5V battery. The consent is, that a + of the battery on the + terminal of the woofer will push the cone outwards. Connect the leads from a 1.5V battery to the woofer for a short time (1/4 second) and observe the cone moving. If the cone is moving out, the + terminal of the battery is showing you the + terminal of the woofer.
Mark it down.
If wrong, reverse the battery and observe again.
Do never connect a battery to the tweeter! You will brake it -> trash!
You have it basically. Follow the letters and driver polarity and you should be good.
If you want to experiment, you can try to reverse the polarity on the tweeter and check if it sounds better.
There shouldn't be much difference anyhow, but some people prefer it.