it sounds to me like you need a new comp set, the tweeters should not be getting bass like that if the x-over was working right.

You'd figure at least one of them were working right. It's only a problem once I crank the volume up and it starts to get loud. Then it just distorts and sounds like garbage. They're fine at mid level and low volume with full bass on. Might be a tweeter quality issue? Or possibly the HU?

i would double check all the connections, no one else with that set on here is having the same problems, amp or no amp.

Is there an amp inbetween the harness that attaches to the HU and the speakers on a BASE radio?

not that i'm aware, but we don't have a base radio option in Canada so i haven't played with one. If you haven't already, i would run your own wire.

I heard it was a major pain in the a$$ to try and run wires from aftermarket headunits through the dash. I don't even know where to begin to put my hands and fingers to make that happen.

sorry are you running the stock HU still?
also it's not to bad to run new wire, and should be done. check out the vids in the sticky section.

Is there a real crossover you could buy that can control the Hz and what is output, like how a real crossover works? This way you could set it to have "x" hz going to the speakers and the rest output to the sub... maybe that would be on an amp...

This setting is sort of on my HU. It gives me the option to send everything under either "Low, Mid, High" Hz settings to the sub. All that did really was give more frquencies to the sub. The speakers started to put out less sound and overall it sounded horrible. So I just put it back to "Low". I think I'll just upgrade Tweeters, shouldn't that at least "help" the problem? If the loudest I listen to my music is 30 and the tweeters start to fudge up at low 20's, don't you think by upgrading to much better tweeters will allow me to run higher volume numbers like towards upper 20's or even 30?

EDIT - Found out that it really is the tweeters. I was on Crutchfield and other websites and I noticed some people complaining about the distortion of the tweeters at higher volume. So can anyone recommend me some tweeters that can handle a very high volume? Just to be safe.

Hmmnn, well that "low, mid, high" seems kinda crappy in general. Now, with speakers and sound, Low Hz, is more bass and the higher the Hz, less bass present. But that may not be what your HU is doing because its a manufacturer HU, correct? To me, thats the main problem and I would upgrade that, but again, im assuming its the head unit with Nav? so you dont wanna do that.

The other problem you may find, is that if you get better tweeters, they most likely will accept higher watts. This in turn means they are going to be underpowered from the HU if you aren't running an amp to them. This could lead to them not sounding as "loud" as you may want them.

Another issue with distortion, is that a lot of the time it is actually the power source that is sending the distortion and not necessarily the speakers but its hard to tell at first without check-listing the problems...

Sorry if I have made confusion for you but these are the things that I have seen in the past. If it were me, I suppose I would start by upgrading the tweeters and seeing how that sounds to you. If its still not to your liking, then I would opt to get an amp to power the speakers. This way you should be able get one that has crossover frequency controls as well...

Guys I have this aftermarket head unit. I could've sworn I've said this already.
JVC KW-XR610 CD receiver at Crutchfield.com

Does anyone recommend some really good high quality, bang for the buck tweeters?

Sorry man, missed the part about the HU...

Reading back I didn't see anywhere where I said I had that HU lol. I've had a few audio threads recently where I stated what HU I had.

hahah... as far as the speakers go, i havent been involved with whats current, so i'm not the best person to give info for that part of the convo.. good luck!

Well, did a good bit of Googling and came across these bad boys. Bought em.

WoofersEtc.com - XS-28 - Image Dynamics 28mm Silk Dome Tweeters (Pair)

Check out the frequency range! Incredible!