has anyone here had to upgrade the 'big 3' wires in their contour after installing a sound system?
if so, any thing i should know before going at it?
im hoping this tutorial will be enough help: http://forum.sounddomain.com/forum/ultimatebb.cgi?ubb=get_topic;f=5;t=007801

my battery is at 12.9V when idle. im almost done completing my system.
altogether i have:

amp- 300WRMS X 1 @4ohms (12v)
amp- 284WRMS x 2 @4ohms (14.4V)
HU- 19WRMS x 4