Intalling some Infinity Seperates.

Now that I have my door panels ripped off, I was wondering if there is any advice on positioning of my tweets. Is there an image improvment in locating the tweeters higher up. I was thinking mounting the tweeter in the defrost vent channel by the door mirror (that triangular piece with the screw plug).

I know I will loose the stock look, and I am no longer stealth. Will the sound be to bright?

Thanks for your feedback.