Hi I'm new here my names rich I had a 99 suburban that I had a clarion HU with 2 15" mtx 9500s on a audiopipe 3000.1 amp but that whole truck got stolen so I just picked up a 04 yukon denali xl I'm planning of picking up 2 18" dc lvl 4 xl and 2 ap 3000.1 amps not sure but 300a alt and like 2-4 batts but I'm still pretty new and learning somthing new everyday so and advice is great thanks