Ok, I figured it out, I'm dumb and was putting things in the wrong folder. Should have been in mods > update > x64 > dlcpacks, not mods > update > update.rpf > dlc_patch. OpenIV didn't put a x64 in my mods folder, so I added one.

@WGotch07 I've been trying to install the Brute Boxville - Mapped Taco Van (can't link because it's being flagged as spam?)

@WGotch07 I assume you mean mods > update > update.rpf > common > data right? If that, then yes, but if there's supposed to be a dlclist.xml in just mods > update > update.rpf, then no.

@WGotch07 Verified files, all that happened was it saying all files were successfully validated, but it didn't seem to do anything else. Game still doesn't load the mod vehicle. I should say that it's seemingly loading everything else (that isn't in the mods folder), like Menyoo & the Addon Spawner.

@WGotch07 Yep

I have been trying the past few days to get my mods to work, after reinstalling GTA V & OpenIV I gained some progress, however it only seems to be loading the mods from the normal folder, not the mods folder (update>x64>dlcpacks, not mods>update>x64>dlcpacks). I can't figure out why. I have installed only ScriptHookV, HeapAdjuster, Packfile Limit Adjuster, a gameconfig, Menyoo, Addon Spawner, and a car for testing. One of the cars happened to be in the normal dlc folder and I had changed the dlclist in that for some reason. I tried deleting it and putting it in the mod folder, but it didn't work. Any ideas?

Does anyone know if it is possible to make a livery use the secondary color option instead of a set color? I feel like I have seen it before, but I'm not positive.

Nobody? Was hoping the creator might see it, or someone who by chance downloaded it.

There was a hair uploaded a few days ago that I was going to download, but has since been removed. It was there a few days ago, I checked today, and poof, gone. Anyone have any info on this hair? I'd like to download it.
Link to where it was: https://www.gta5-mods.com/player/slicked-back-haircut-for-mp-male

@Algonquin1234 That did the trick! Thanks!
Not sure why that was the issue, there wasn't even any mods in there.