final product....
marred the plastic at the bottom a bit, being impatient with removing the old socket.
Just adding own experience from this afternoon:
First, it's 2024. So the widget I selected has 2x USB PD on C connectors, and 2x USB QC 3 on A connectors, and a voltmeter.
After the panel by the accelerator was removed, I didn't remove the connector in advance. I didn't even use a trim tool -- it all seemed kind of tight for that. I just used a nice, shiny, smooth screwdriver and worked the socket out from the front. Marred the plastic a bit (yeah, you'll have that), but nothing particularly untoward. The whole thing came out as one, and then I removed the connector from the front. It was surprisingly easy.
The wires were very short -- almost impossibly short. To give myself a little room, I disconnected the green connector for the aux input (push tab, pull) and pulled the plastic retainer out that held a white connector in place. (These all fit back together beautifully.)
My particular USB power widget had parallel blades, whereas the Honda cig plug socket connector has a T-shaped arrangement. I was able to non-destructively liberate one of the terminals from that connector; I left the other one in place. (One might try to pick a widget with a T arrangement and perhaps eliminate this step, as well as the previous part about making more room.)
To enlarge the hole, I used a step bit. 1 1/8" was the magic size, and that was only one step larger than the hole started out as for my particular bit and my particular USB power widget. It only took a few (slow!) rotations in the drill motor to make this happen -- in retrospect, I could have easily done this by holding the step bit in my hand and turning it. It was the minimum amount of embiggening possible with what I had on hand, and it looks like the factory socket would still snap in if I ever wanted to do that.
Anyhow, thanks. That wasn't too bad to get done at all. (The only scary part was pulling on the panel to get it loose: I always get a bit of fear in me when I go blindly tugging on plastic clips, but they all came out perfectly and went back in just the same.)