Hey all! I need some advice on my soun system for my TJ. I can barely hear it when going at high speeds, and was wondering how to get it louder for as cheap as I can. I don't need to to be hurting my ears loud at high speeds, but I want to hear if. Should I suck it up an get a sub and amp, amp for the other speKers, and a head unit? Or would I be good by just getting a head unit? Any advice is good but try to keep it as cheap as you can! Thanks!