The main problem at this momment is alternator whine. I can hear the whine change as my RPM's go up / down. It's getting to where I can't stand it but need to find time to try something..
I'm going to try a 10AWG ground. Currently I have a VERY thin ground. 18-24AWG. I'm not sure exactly what gauge it is I just had it laying around..
Also, your supposed to run the power/ground as far away as possible from the RCA's but with my setup this isn't realistic. Are there any solutions for this? Can I run one set of the wires in a PVC tube? Would that help?