[iSabir]

Hey guys,

Over the weekend, I installed a new dashcam in my car.
along with a backup battery so it doesn't mess with the IBS and battery draw.

I used the add-a-fuse kit and piggybacked off the accessory fuse for the cigarette lighter. Used the fuse probe to make sure it was not hot while car was turned off so it doesn't cause any sort of drain or anything.
Car was fine over the weekend, but when I got in this morning, the instrument cluster, iDrive screen and OBD port aren't working at all. No turn signals working either.

Anyone have any idea what it could be? I didn't touch any of the other fuses, and the one that I piggybacked off of is working fine. Both the battery and the dashcam and cigarette lighter plugs are working perfectly.

Thanks

[Joebie]

I'd start by checking your fuses. I bet one is blown, but why, I don't know.