I think the standard system is adiqute mine sounds like it has a sub allready, i may add a sub and amp soon but want to keep OEM I wouldent touch FLI speakers or vibe ones as i found the quality isnt that good. Alpine components, especially type R are quality, but expensive.]
Vibe are ace lol nay sayer i mean Fli are pretty pants but they are the bottom of the range the space components are absolutely mental ive never heard such clarity from a component. Also the Qb69 square 6x9s are awesome the base they kick out is superb better than smaller subs ive heard.
im abit of a VIBE lover what can i say