Problems with Realtek drivers and New build

I'm really struggling to get this fixed. I just put together a new build using an Asrock Fatal1ty gaming k4 motherboard. It has realtek ALC892. On my previous pc, i could have my speakers plugged in the back (3.5mm), and my headphones plugged in the front, and switch between the two from the speaker in the bottom right of windows. For some reason my new build can't do that. I've been doing a ton of research, and it looks like Quexos was having the exact same problem in this other thread Latest Realtek HD Audio Driver Version [2]. He said he fixed it by using the 8328 drivers instead of the new ones (mine are ver 8619). That's great, i'll run the old drivers no problem, but i cant figure out how to install them. The drivers from asrock had a setup.exe that i ran. The 8328 drivers i downloaded from softpedia doesn't have that. I try to install manually through device manager, and it says the latest drivers are already installed. I ran the Realtekaudiodrivercompatibility thing in powershell in the 8328 download folder, and it said no inf file found in the provided location for the audio device: HDAUDIO\FUNC_01&VEN_10EC&DEV_0892&SUBSYS_18499893.
I'm confused, shouldnt the softpedia download have the inf file in it for my audio hardware? Someone help please!

@MoKiChU So i went through all the steps in your link. I got to the end where i'm supposed to install the realtek audio control, and i keep getting an error code when i try to download it. Error code 0x803FB005. Not sure if i could change this in the realtek audio control app, but my headphones and speakers are still having the same issue. The only things listed in playback devices are Speakers (Realtek high definition audio) & Digital Audio (HDMI) (High definition Audio device). Even with my speakers and headphones plugged in.

- - - Updated - - -

Also, i checked in device manager. Under Sound, video, and game controllers > Realtek High definition audio is using 6.0.8947.1. There's also a High definition audio device listed using driver 10.0.18362.356. I'm not sure if this gets automatically installed on restart or if it should be there or not.

In device manager again under Audio inputs and outputs > Speakers (Realtek High Definition Audio) These have a driver version of 10.0.18362.1

It sounds like i should be seeing Realtek Audio instead of Realtek High Definition Audio in my Sound, video, and game controllers. I followed your posted link again, this time without internet. I'm still having the same problem. I provided some screenshots of the process below. One is of all the drivers that i check marked to be deleted, and one is of my device manager after Install_sbc.

Process:
-checked to make sure realtek audio/creative sound blaster was still uninstalled from last time
-unplug ethernet
-launch Driver store explorer, force delete check marked, restart pc
-run install_sbc as admin, auto restarted
-screenshot of device manager
Again, all of this was done without ethernet plugged in (no wifi either).

So it looks like your updated driver install worked to get the Realtek (R) Audio listed in device manager, but i'm still having the same problem. It seems like the Speakers (Realtek(R) Audio) listed in the Audio inputs and outputs is for both my speakers plugged into the back, and the headphones in the front. Where with my previous PC i believe i had a separate headphones listed in that area i could switch to.

Just as an update, i somewhat bandaided my problem by plugging my speakers into the 3.5mm jack on my monitor. I can now switch between my headphones and speakers just by clicking which output i want.