I think Mobil oil and filters still exist, so I'll just continue to get mine at a retailer. I ordered a wire harness for a headlight last week at a dealer and had no problem with that either. guess I'm lucky.
Being a dealership we don't use after market parts, but with this crap we're having to.
They had to have gotten the harness from another dealer.
I get at least 50 calls from other dealers every day wanting to buy parts we have in stock.