I recently purchased the LX Sedan for the gas mileage. I have an 80 mile round trip to school and work each day, so my previous car was starting to break me. I don't plan to do any mods to the exterior, as I want to keep this car as simple as possible. The sound system I have is carried over from my previous car. This was all installed myself, so if there's any help you need I'll be more than happy to help you out if I can.

I am not doing any engine mods, or anything to the exterior other than the tint. I'm keeping this car as stock as possible. Like I said, I bought it for the mileage and reliability. Not rice factor.

Right now the only install I have done is the headunit. The speakers come in today, and wiring arrived yesterday. Planning on deadening the trunk next weekend, so hopefulyl full install pics will be up by end of June. I plan to keep this page updated, so check back now and again for more installs and various pictures.

Thanks goes to the guys at 8th Gen Civic Forums.

Car:

Upgrades:
20% Tint all Around, 6 inch strip on windshield
Alpine iva-d300 dvd player
Ipod connection
Rainbow 6.5" SLC Components
JL Audio 1000/1 Amp and 12w7 Subwoofer built in custom box
Alpine MRP-f240 4 channel Amp.

My installation steps and finished product.
Page 1: Here
Page 2: Alpine IVA-D300 Headunit & Ipod Controller Install

Page 3: JL 1000/1 & Alpine MRP-F240 Amp Install

Page 4: JL 12w7 box, and false floor install

Page 5: Rainbow SLC 6.5" Mid and Tweeter install

Some DIY tutorials for the 2006 Civic: These are not of my install.

Great site for installing a headunit. Lists part numbers needed. I ordered all of the dash kit pieces from hondapartsdeals.com.
Headunit Install

You'll also need the Metra Harness (#70-7022) which can be ordered here.

Info for front speaker/tweeter install.
Front Speaker Install

Excellent source for overall teardown. Includes visor, center console, dash, etc.
Interior Tear Down

Instructions on running power wire:
Running Power to Trunk