Hello, I recently purchased a 2020 Chevy 2500HD that I will be getting this week. It comes with the 6.6L Duramax Turbo-Diesel V8 engine, Z71 off-road package, convenience package 1 and 2, gooseneck/5th wheel package, trailering package with hitch guidance, and leather.

I have two questions. The first is that my wife wishes it had better speakers/sound. I was planning to just replace the 6 speakers with better 6 speakers. Is this the best option or is there another recommendation? The second question is that It has the two plugs near the 7 way trailer plug for two rear cameras. One supposedly for the bed and one for being able to hook up to the back of whatever you are towing. Does anyone know what cameras I can use for this?