Build R²M 2013 GX 460 Overland Build

[r2m]

Just received this:

https://www.amazon.com/dp/B0FK3ZSX1V?tag=ihco-20

This way I can listen and charge my phone. Before plugging it in, I completely disconnected both the audio and phone (Bluetooth) from my phone and deleted the pairing connection on my phone before plugging the 3.5 mm jack in. I just got back from an 1.5 hour drive and it worked perfectly! I just use the AUX on the head unit.
The only functions on the steering wheel that works are the Up/Down volume on the lift spoke of the steering wheel, as expected.
The phone, nor anything else worked, as expected since the 3.5 mm jack is only audio and not data. But at least I have good music coming through the head unit!
Not ideal, but considering we're thinking about going up to my sister's for Thanksgiving, up in San Francisco, about 8 hour drive, we at least have music.

After getting home, just now, I did reconnect my phones Bluetooth, just the phone, not audio, to see if that works for the long term. Trying to eliminate one component at a time. If the phone still works, GREAT! If it also freezes the head unit, I'll disconnect the pairing of phone and ONLY pair the Bluetooth audio and keep the phone unpaired.
My expectations are that they will still lock the head unit, even though it is only one of the components at a time.

I'll keep you all posted.

 

[r2m]

UPDATE:
Regarding the new lithium battery and cold weather effect on lithium batteries that's been discussed above, I'm now in Tahoe and it's been pretty chilly for up here. It's been getting down into the mid/low 20's° F, well below freezing.
It's been a couple days of not driving, with the car just sitting. Yesterday, the wife and I went to do a couple of errand's. Feeling a little anxious, I pulled the door handle, and it unlocked! That's a good sign. We both hopped in, pushed the button, it started right up, very strong start. I'm happy... So far the temp's have had no effect.

UPDATE:
Now, this is for Acrad regarding the head unit locking up. As you suggested (thanks!), I did the diagnostics via OBDLink, cleared them all, except the AFS and rear airbag codes. While driving up here, we went a couple hours before it locked. That's good enough to get us between potty stops and gas, so I'm pleased. Although, I do clear the codes often. But for now, I'm good with it.
Also, I called BeatSonic, since they're near me and spoke to them about the issue. They said if it has anything to do with the USB, their BeatSonic unit may not solve the issue.