Ok, I ordered a box off of Ebay, and it also comes with 2 free 300W tweeters.

What am I supposed to do with them?

Sure it would be nice to have them in my car, but where would they go? In the sail panels?

Sorry to sound dumb, but I dont know where to put them, let alone know where to put them so they sound good installed.

 

They're probably junk. I say this for two reasons; first because they're rated just the same way Sony rates their amps and subs - wayyyy too high. There's no way a tweeter can handle 300 watts, the cream of the crop will blow your eardrums with less than 50. Second: they're free.

If you're going to install them you should either put them in your kicks or in your a-pillars in fiberglass pods. They should be aimed toward the dome light if you want to be nice to passengers and have a decently wide stage. You’re going to have to buy (or make) a crossover for them so they won’t get fried trying to play a 100 Hz note, etc etc. If you’re just planning on adding them to your current stereo I would advise against it because it will make your stage too bright.

 

Throw them away. Like Gummie said, they're junk, and they certainly aren't going to improve your setup.

Then again, I never found quality subs that came with free tweeters either, so I have to wonder just what kind of quality stuff you bought.