H22 Speedometre

Hey, I got an H22a swap in my 88 crx. Of course the speedo doesn't work as mine is a cable and the h22a is a digital electronic.
SO, cause i am a noob at this stuff, how am i to go by hooking up a digital speedo gauge so i can see my speed????? Is it as simple as finding the correct wire coming from the ecu, or is it more technical then that???????

Thanks
Brian

ok, so i believe the ecu is out of a 95, so that means it would be the P72 OBD1 which means the speed sensor is B10. DOes anyone know if i hook my digital gauge to B10, will it show me my speed?
As you can tell, when it comes to the world of digital, i'm puzzled

no ones knows on this JDM forum?????

does anyone even own an car with an H22 swap??????

since when was the speedo digital?i think you made a mistake