Audio Systems: Car/Mobile Audio, audiocontrol dqs, audiocontrol lc6

Question
I'm looking to reduce the level of high frequency signal from my tweeters because after a short period of listening, my ears ring like crazy.  I was told by an audio installer that connecting a 47 microfarad capacitor to the positive terminal of the tweeter(s) would reduce the signal and "smooth it out".  Everything I've read online says that this may not be the case.  Yes, you'd think that with the 30 band equalizer that this could be minimized, but I've not been successful thus far.  Your help please.

PRESENT SYSTEM:
BMW X5 OEM headunit (no OEM amp, NAV or DSP) with replacement Rainbow tweeters and woofers driven by Eclipse amp (3422) and Alumapro 10" sub driven by Elemental Designs NiNe 2 amp. Signal from head unit is first processed by AudioControl LC6 and AudioControl DQS equalizer.

Answer
Shane,

 the audio installer isnt far from a great fix, but i think his freq might be a little off, stop by the guys at radio shack , circuit city or other place .. tell them what you are looking for which in this case is an inline noise blocker... they are usually not more than a couple of dollars if that .. wire or soldier it in and your good to go ... hope this helps you out

thanks

CM