I did a little research on this, and here is a quick wrap-up of what I found.

There are 2 main brands of wideband o2 sensors, Bosch, and NGK, the NGK was found in certain low-emission hondas, and can be ordered as an OEM part, however supply has recently been curtailed, and they are hard to get.

You need a controller to access these five-wire O2 sensors, this converts the signal into a usable signal, and also HEATS the o2 sensor, this sensors are active and have an internal heating elemant for their operation.

The controller will give you outputs of two types
WideBand:

Narrowband:


As you can see, Wideband is a linearly output 0-5 volt signal, suitable for gauges, etc. (I THINK this is what aftermarket units (hondata, etc.) tap into.

Narrowband output is I THINK what you would feed your ECU.

So here is your scenario, you have the Wideband 02 sensor in the stock location (pre cat, but far enough from the primaries to not exceeding the sensors safe operating temperature), the 5-wires run to the Wideband controller, where you take the wideband output out to your display device, and feed the narrowband back to you ecu.

-PHiZ