I'm trying to install this: https://boostautoparts.com/products/2019-newer-gm-charging?options=&year=2019&make=GMC&model=Sierra 1500
And before I went ahead and made permanent mods to the trip pieces (drill holes) I decided to try charging my phone before I put it back together and it wouldn't work. Further troubleshooting and neither of my accessory/cigarette lighters function, front or back. All other USB outlets seem to function just fine.
This particular device plugs into the accessory/cigarette lighter wiring hardness in back, underneath the two cup holders.
Anyway, tried a meter and couldn't get any voltage at either so went hunting for the fuse(s). Found this site (https://www.startmycar.com/us/gmc/sierra/info/fusebox/2019/gen-g5) which seems to explain it well and seems to match my manual but for the life of me, nothing I try works.
The manual and the website seem to indicate that F28 could be it, but what I have (passenger side/front/front) doesn't match what I find when I open it up.
It's close, but not the same, but still empty.
If I flip this around and look at the other side, there's 4 more that seem to match the diagram at least.
I don't have fuses/breakers in the bottom 2 slots there which seem to might be for 2021+, but the top 2 I pulled out, tested continuity, and they are fine. Close up shot of them:
Am I even in the right ball park here? Anyone else able to check their truck to see if I'm supposed to have the bottom 2 slots filled up? I tried moving the breakers from the top 2 to the bottom 2 and it didn't change anything I could notice.
If I'm supposed to have something in F28 in my first picture, it's 3 prongs and doesn't look like what's in my manual.