I do have the A pillar tweeters. Up front near the dash where the handles are correct? There are speakers there I just feel that I dont get enough volume out of the system without it sounding overloaded. I see the infinity references on there for $139 not bad. It says that the a pillar tweeters dont match any size and to call them for custom mounting. Did you do this? I just want something with more crisp and clean sound than what I have now.