So I am basically new to car audio. A few weeks ago I was running a 1000w Crunch amp with a cap and using a 12" shallow Kicker sub off my stock deck. I never had any issues but wanted to upgrade my system. I bought a Pioneer AVH 8500, a 1800w Kenwood class D amp and two 12" Memphis shallow subs. Now when I turn my music up, (only about halfway) my subs start to cut out. I turned the bass down by it still happens. I noticed that the amps light dims to bass. Any way to stop this?