Front speaker

If your not afraid to cut your door panels, you can get shallow ones in there too. Tweeters are somewhat directional so putting them in your dash pointing up is not the best place for them. reflecting them off the windshield is an option. I put tiny enclosed Cerwin Vega tweeters in the corners, you barely noticed them as they were about the size of a silver dollar, and had all the bass to the rear set of 10's in the trunk devider, ran mids in the door. That was back in 85, @ 400W, "Hot for Teacher" would rattle the dash and sounded good..and that was off a low buck Pyramid cassette head unit. ...