I'm looking to replace my stock system with something better does anyone have any suggestions on what I should get, I want the best there is.

 

I'll just throw my 2 cents in for choice of head unit.

I think the Pioneer 8000nex is the best out right now. Smartphone like multi touch screen and apple car play coming soon.

 

Id probably agree. Or one of the top of the line kenwoods.

 

Get a Pioneer Carrozzaria DEX-P9 with the add on DEQ-P9. You will have to order it through Japan via internet. The good stuff isn't available in the states. Don't worry. The tuner works here too.
Get ready though. It isn't a touch screen , nor is it a double din. And the cost is around $4000.

Looking for better? There is still a few Alpine F#1 Status combos out there. It's about $7000 for the HU and processor. They made a companion motorized screen for it. Adding that puts the price near $9000.

Other than that? There really isn't much to get excited about. Maybe an older Denon R1. Or a McIntosh CD tuner.