amigo

Slackin' on his pimpin', yo. .

Wow... that's fat.

the gas tank in the ls is located right behind the back seat, which makes it hard for bass to pass thru. what i did is take out the stock sub to allow air to pass thru & tap off those wires to run my aftermarket amp. you'll still need to run the power wire though. depending on your taste, you'll probably need a pretty strong amp if you wanna THUMP thump. i'm running a 2400 rockford 2 channell to power 2 12" JL w3 v2 d2's & it doesn't bang half as hard as it did when i had it in my civic... again, it depends on your taste. a bass knob is a pretty good idea as well, so that you can turn down the bass on your head unit & control the bass from your bass knob to avoid blowing your door speakers.

Yes, but I wouldn't say you're "stuck" getting a Pioneer in-dash. You can get the 6.5" touchscreen dvd/cd/cdr/wma/mp3 with navigation, which is pretty tight... or if you wanna save about $600, the one without navigation goes for about $1,300 new.