Blah, blah, blah, that is totally not true.

I have a 5G Civic Coupe that I converted from Auto to Manual and dropped the JDM H22A 5 spd in it with hardly breaking a sweat.

check out www.importautosalvage.com, they can get you the entire pedal box assembly that you need with the clutch and clutch master cylinder, hard lines, soft lines, etc. for really cheap. Mine with a center console that they through in for free was shipped to my door for about $75. You should have everything else you need with the motor (clutch slave cylinder, ecu for a manual, and shifter assembly with cables if it is H22A).

As for wiring, the only thing you need to do is take the automatic shifter out and there is a plastic slider with a bunch of wires on it. most are for you intrument lights on the dash. I shorted the Drive indicator light just for the hell of it.

The important wires on the shifter are the yellow and green ones towards the center. These are your reverse sensor wires. Just run these to the reverse censor on the tranny or trace the reverse sensor wires from the tranny into the cab and splice them there... that's what I did.

The only other wires you need to worry about are the fat black/white and black/red wires. You need to short these two together so that you can remove your keys from the ignition. These are the wires that short when the auto is in Park.

There should also be a pink wire for cruise control if you have it. Just short that one and cruise control will work.

Recap: I took the pink wire, the green drive light wire, and the black ground wire and crimped them together.
Result: Drive light stays on and cruise control works.

Recap: connect the fat black/white and black/red wires
Result: you will be able to start the car as well as remove the keys.

You will not need to worry about hooking up the connector on the clutch pedal... you will be able to start the car without pushing the clutch in. If this scares you then just put a switch in between the fat black/red and black/white wires which will force you to flip the switch before you can start the car.

It sounds complicated but really is not just crimp a few wires, install your pedal box assembly with clutch master and lines. There should be no cutting involved with the pedals. The cars are universal off of the assembly line so there should already be a hole in your firewall that is capped off where the clutch master cylinder will go through and attach to the clutch pedal. Mine had a plate covering the hole with some sort of interlock control assembly attached to it on the inside of the cab. You won't need it and can just throw it out.

Also if you have cruise control and plan to keep it, make sure the pedal box assembly you get is for a car with cruis control because the gas pedal will have a spot for two cables to attach to (cruise and throttle). I made the mistake of not specifying but it was no big deal... I just took the gas pedal off of the automatic pedal box assembly and swapped it with the gas pedal from the manual pedal box assembly.