2010 FJ Cruiser Build

After getting the FJ suspension issues addressed, i have decided to move to the audio project.

I want a good clear crisp sound

Currently have a Pioneer Headunit / Kicker 6.75 Component set which is ok but this setup is not giving me the sound i want.

i want to add a sub and amp.

question is what amp/sub package should i add and if need be what door speakers should i go with.

Im trying to stay under $1000.

any help is greatly appreciated.