Toying with the idea of upgrading the tunes in my 06. Current Shaker 500 is meh, ok but wouldn't mind some improvement.

Not looking for the ultimate, just notably better than OEM.

6x8 suggestions

8" door suggestions. Replacement options are complicated here due to mounting depth and oem amp impedance

HU suggestions. I'd kind of like a touch screen that can run OBDll apps

Truck sub, are they worth it? Heavy, expensive, bulky