I have a head unit that's a jvc and it's pretty nice And I'm looking at speakers. What brands are best? My trucks speakers are 6 1/2 I think it only has door speaker and there are just 2 speakers in the truck. Also I've seen speakers called Coaxial and some are components what's the difference? And how do I know how high a peak and how high a running capacity I can handle? And finally do all of them have highs mids and lows ? Cuz I do need some more bass but not enough to require a sub .