car speaker whine, 93 civic si coupe

Hi About 6 months ago I decided to install an amp and a few subs into my car. All was fine until a few hours ago when I was coming home and I hit a small bump (man hole cover) and my speakers went crazy, they were whining very loud, loud enough that I could not hear the music at all. so when I got home I checked all the wires to see if any were disconnected and yes one of the speaker wires wwas but when I connected the wire back to the speaker the noise continued. I tried conecting one speakers at a time and the noise persisted then I tried turning the gain on the amp down (didnt work) I tried switching fuses in the amp (didnt work). Basically disconected every wire and connected them again (didnt work). Also I would like to add this sound is not coming from the alternator as I fixed that problem a long time ago and this whine is 100% worst. Also this sound even happends when I have the car running solely on battery Any advise would be appreciated as I have exhausted all of my ideas. AlAl

just so everyone knows its a 93 civic si coupeAl

You fried something. There's no question of that, but as i am an idiot has asked, we need to know a bit more about your system... Also, which speakers are making this whine? Is it ALL of that type of speaker (highs or subs) that is making the noise? Please list source, any signal processors you might have, (ANY device between head unit and amplifier is a signal processor) amps, and speakers; makes and model numbers are MOST helpful!It all reminds me of something that Molière once said to Guy de Maupassant at a café in Vienna: "That's nice. You should write it down."