I feel like this thread started out being a bit OCD-like and has gotten progressively weirder.
The OP has done all this work on an old car after watching YouTube videos when he clearly has no idea what he is doing, went off on a sidebar about all the trouble he’s had over the years with vehicles:
At some point he decided to bring the vehicle into a shop to have them correct some of his work so he could pass inspection.
He then moved on to accusing the shop of shoddy work, performing unnecessary work, talking about fraud and suing the shop, accusing them of being on drugs, taking the vehicle to another shop, having them do the work outside in front of him (or videoing the work?!). Here’s a tip: why not go back to the first shop, tell them your concerns, and give them a chance to address them?
Anyway, at some point I reread the OP and realized he was actually talking about a much newer vehicle (2008 vs. 1980s) and I acknowledged as much, only for him to repeatedly jump all over me for the misunderstanding and start attacking me in FQ. And I don’t have an Audi. 
Here’s another tip: don’t write a rambling OP that goes all over the place and then attack people trying to help you and give you useful advice.