hey one day i was listening to muzik (w. the bass the whole way up as usual) n then the next tyme i got in the car there was no bass but i culdnt tell a dif. the day b4 idk wut happened but it sounds about the same from all speakers n idk wether to replace the speakers or the head unit wut u think? n i was thinkin sony head unit if it was bad or sony 3 way speakers wut u think?

A couple things:

1 - You need to go back to grammar class, I had to read your post several times to figure out what you were trying to say
2 - You probably blew the mids but the tweets are still going, it's extremely hard to tell though because you gave us absolutely NO detailed information about how it sounds, what speakers are playing, what you have, etc.
3 - Sony sucks ass

Do you have Subwoofers?
- If so is it the subwoofers that arrent working?

Do you have any amplifiers?
- If yes, then check fuses etc.

Give more details as to whats not working. And one last thing...

http://www.cede.psu.edu/~ryc107/Images/jules.gif

haha OKAY I WILL TYPE BETTER lol(laugh out loud) but any way what is there to describe the music sounds fine but there is little bass but its still clear so i dont know whats wrong

and no hablo ingles yo hablo espanol lol i was dying when i saw that pic but no i dont have a sub but theres a internal amp but i dont think thats it because the tweeters r still working