so i plan on ordering an alpine cda-105 (btw if you guys have any suggestions on something better than that in the same price range let me know) and ive never installed a stereo before but i want to try it. my question is do i need to buy like a wiring harness or something to install it in my 2000 ls integra?

 

that is a Really nice deck for the money.
you need a wire harness ($15) and a dash install kit ($20)
You can either order these online, or get them from best buy, or most stores that sell audio equipment.

 

you know of nay websites??

 

Crutchfield. They'll also throw in free of charge an installation kit, installation instructions and a wire harness adapter.

http://www.crutchfield.com/s_500CDA1...+cda-105&ssi=0

 

Alpine is a great choice!

 

I dont know if you got the parts you need already, but I can tell you the model number of the harness and dash kit your gonna need.
Dash Kit- Metra 99-7898 or
Scosche HA1563B or
Scosche HA1566B
Wire Harness- Metra 70-1721 or
Scosche HA08B
Any of those should work.