Evening all

Was wondering if anyone has done the above at all? I'm going to be doing it sooner or later, as I'm getting pretty bad light fading All I'm running at the moment is Pioneer DEH-6800MP, Infinity reference components up front ( running off the head unit ) Infinity reference 1240W subwoofer, powered by an Alpine MRP M350D

Alternator I've tested at work, puts out a healthy output of 14.34V, using a guide off talkaudio puts out roughly 234 Watts RMS

Are astras standard earths really that bad?! I never had this on my old saxo, and I was running a Vibe black box with the Alpine amp!