If you're asking about the name of the actual FACTORY HEAD UNIT, I'veincluded a picture.
View attachment 9317
Here's an image of the wiring of the head unit, this one is from the 2020 Civic. I found that it was identical except for some wire colors... The diagram on the left shows which connector it is; It's the thick, 24 pin one. The diagram on the right shows the wire numbers which seemed to be correct and I was able to use them correctly. The only thing is that the 1 power wire is red on my '22 LX, therefore, I don't believe the colors are exactly the same as this diagram from the 2020 Civic.
View attachment 9318
RP-1200.1D | 1,200 Watt Class D Monoblock Car Amplifier
It's the amp that comes in the bundle I bought.