What's the best add on to the Shaker 500
 

I want to improve the sound on my stock system. Basically, best bang (or boom) for the buck. I'd rather keep the stock deck to maintain integrety of the look of the interior but could be talked into replacing it if it was the best choice. Add amp and sub? Better speakers in doors? Don't really want to spend more than $500. What do you guys think?

spend your $500 on an exhaust set up so you dont have to worry about spending $$ on your stereo??

LMAO Zig! How 'bout I do both and really f**K up my ears!

now that's an idea!!