Tweeters sound distorted (feel like there blown..) when car start

Hi guys,

i am new in the word of audio system for car, altought i find my way to do everything by myself because i like to understand how thing work together. i came across some problems this weekend after installing my front tweeters,speakers and rear speakers.

I got also everything that i needed for the installation to easy up my work. Everything went smooth regarding the installation and next week iam suppose to get my aftermarket radio and its done. (not sur if ill put and amp)

So my problem come from my tweeters, i notice when i crank my volume the sound coming from them feel like they are blown... but what i dont understant is that they are brand new, when the car is off and i play only the radio they sound and work really good. But when i start the car they start to distort, and i need to lower the volume so i dont ear the distortion. On top of that all my other speakers sound great nothing bad there. Its only my tweeters, something is wrong for sure and i didnt find my answer by looking on different forums.

If anyone had a problem similar to mine, share it its might be my solution.

thanks guys (sorry for the bad english)