I found this article on the hissing from my tweeters. This sounds like it exactly:
It is common, after replacing a factory receiver with a high quality aftermarket receiver, to notice a background hissing sound. The "hiss" is nothing more than the extended frequency response of the new stereo, and not a defect, or wiring problem.
The same holds true when a factory speaker is replaced with a high quality aftermarket speaker. The new speaker has a separate tweeter, which brings out the high frequencies. Any background hiss in the system will now be more noticeable, but should be relatively slight once the source music begins playing.
Of course, if the hiss is pronounced, and not just in the background, there could be a problem with the wiring, or the equipment itself. If the hiss is made louder when the engine is running, this is an indication of an improper ground in the system.
Im almost positive this is what im hearing and nothing major. Just thought this was informative for anyone with issues like mine