2011screw

Hey all,

I am going to be installing a LC6i and had a few questions

1) What size speaker wire should I run from tapping into the wire harness speaker wires to the LC6i ? Is 16-18 gauge good?

2) I am running front components and a sub amp only. I will be running RCA's from the main output and the channel 3 output. Do I need to sum the channel 2 output with anything?

3) Is it best to run the power and ground wires directly to the battery to the LC6i?

Does anyone know where I can get a 2011 F350 Navigation head unit wire diagram for the colours for the speaker wires?

Thanks for any help you can provide