What are some good mods i can get for my new 08 Raider

I dont know the exact model, but its Black, has a V6, and has 4drs, and the Brushed looking alloy wheels.

I am looking for a sound system but where would i put the Subwoofer?, do the 40/20/40 Seats fold up, and if so How do i make them fold up. Would i also have to remove the Indash Console and replace it with a custom one.

I noticed this image:
(IMG:http://images.minitruckinweb.com/images/0607mt_10_z+mitsubishi_raider+subwoofer.jpg)
, I do like that, but i dont want someone breaking in and trying to steal it.

For Wheels, im not really concerend on them, but i wouldnt mind replacing the stock with some Black wheels. So if anyone has pics of a raider with some custom rims that would be great.

and the last thing i am looking to do is to make the Engine sound Louder (mufflers)..
Is there more that i have to do rather then just take the current muffler out and replace witha new one. If anyone has a guide on how to do this that would also be great.. I dont plan on doing it myself but i just want to know the work involved in this.

And Prices, how much should each thing cost me.. and if you have any other mods, please let me know.. Thanks

***Pics are always great

Here are some of my truck
http://s274.photobucket.com/albums/jj244/ap0091/mah%20truck/