system for 04 mustang

Im wanting to change up the whole system in my mustang. Right now i have the factory mach100 headunit and mids and highs and two kicker comp 10" and a jl audio e1200. Im running a sealed box i build because of limited room in the trunk. but it dosent sound to great and i want more, thinkin maybe the box.

You might want to look into an aftermarket headunit.  You got to start from the ground up, and the HU is the ground.That's my opinion. Take it, leave it, or correct me.

i thought about it but i like its a 6 disc indash. and im gonna try keep it atleast till it breaks or get some extra dough for a indash. What you think about the subs and amp its not alot of power but the subs are 150rms and i think the amp is 220watt mono block if i rember right. Im also intrested in maybe finding a better box, but i looked around and nobody makes one for it.

i vented enclosure  will be louder but "peaked" and blah blah blah. you may have to have one built buy an installer.  you could use a larger amp also.