Keyless Entry Installation

Hi,

I just got a genuine Honda Civic keyless entry today which I've order
from http://www.handa-accessories.com for $120. And I installed it
today. The problem I have is it is not working at all.

Here are the instruction, and I did just want it tells on instruction.
http://www.handa-accessories.com/civ...ckeyless01.pdf

My question is am I doing something wrong for programming of remote
controller?
or the actual keyless entry unit is broke?
or since I don't have factory-audio on mine, is that the problem?
just in case, if I put wrong connector on the fuse.. are they supposed
to be all different size? so if someone tried to fit one, it won't fit
if it is not the right one.

When I asked the merchant, they said it will be okay and there keyless
entry unit is basically all I need. Please help me..