Couple of AMP Install Questions

My shiny new Cerwin-Vega B2 amp arrived last night and I had time to put it on the bench and test to make sure that everything worked before I start tearing into the bike.

I have a couple questions that I'm hoping someone here can answer.

Bike is 2015 Road Glide with stock 4.3 HK radio

1. What diameter ring terminal is required for power line connection to the battery terminal? Is is 1/4", 3/8", 1/2" or other?

2. Anyone have speaker wire color code for front left and front right?
The only info I've found is from Hawg Wired and they say;

Front Left + / White-Orange
Front Left - / Light Green - White
Front Right + / Gray-Red
Front Right - / Light Green - Black

Are those correct? Any help on the two questions would be greatly appreciated.

Thanks.