An update to the console install. I got it in. There's a few fastening points I can't figure out how to connect but it's good enough. The existing Tahoe ppv wiring from the floor and coming from underneath the dash was not long enough to connect everything to the new console. The only thing I got hooked up was a cigarette lighter plug near the driver. I'll have to splice in wire to extend some of the other existing wiring so that I can get a cigarette plug working in the back of the middle section.
There's someone online that has a YouTube video about the wiring and they can make a custom wiring harness if I send them all the pictures but it's going to be at least $200.
With the stock radio, I don't know if there's a way to hook up USB and get it to play through the radio from my phone. I couldn't get the USB powered up with the existing wiring I had. The 2015 Tahoe ppv I got had a 110 volt outlet existing but on the council I bought, it didn't have a place for the 110 volt. I guess I could carefully cut a square through the plastic to pop in the 110 volt outlet that was in my dash previously but I'm going to hold off for now.
There's also a loop of wires in a wiring harness connector that come out underneath the dash. It loops down to a connector and then goes back up under the dash, I'm thinking that might have something to do with the controls for the rear heat and air conditioning. The console I have has those controls built in but I don't have a wiring harness to try out connecting it. The wires coming from underneath the dash aren't long enough to reach the connector.
I did remove the seat on the driver's side but that was to replace the foam on the bottom. That made a huge difference in how the seat felt. The foam was completely crushed and disintegrated. The foam cost me less than $80 from Amazon.