@ LilliKu & whoever's interested...
Here's a mini guide of how I installed my fogs. I was in your shoes a couple years ago when I first got my coupe. Installing fogs was one of the first mods I did. My car was not pre-wired. But I still wanted an OEM look. So I got my hands on the Altima service manual, and did tons of googling, and searched other Nissan forums.
You should know that even though your car is not pre-wired for fogs, the connectors in the fuse box next to the battery still work. I remember someone on another site\forum did it this way…which confirmed it. There's a few pictures of the fuse box area on this forum. The same way you check to see if you are pre-wired, is the same place where the wires have to go. I just stripped the new wire about a half inch and jammed it in there. I check it periodically but it hasn't moved. It's been working fine for over 2 years now. And I just installed an HID kit on it last week. Still good.
So in a nutshell, I ran my own wiring to the fuse box. To control it, I bought the OEM turn signal switch that has the fog light switch on it. My setup cost more, but like I said, I wanted an OEM look. And I def did not want to risk cutting any wires by going through the firewall.
In case your interested, here's what I got. At the time (2 years ago) there was not many options for Altima coupe fogs. Ebay might be a cheaper option now. But this still works...
Fogs (2 bulbs included)
http://shop.autopartsavenue.com/FOG-LIG ... 0-1-2.html
Combo Switch - Depending on if you have automatic lights or not...
http://www.trademotion.com/partlocator/ ... atalogid=0
3 - Different color wires - I used Red, Green, & Black for power and ground.
Sold all over the place but I got mine from Home Depot. "16Guage Primary Wire"
2 - H11 connectors.
I forgot the site I got them from but they are sold all over the place as well. A local Autozone might have it too.
Good luck.