Yesterday I took my car to the mechanic because i had a oil pressure light come on. I got a call from him a few hours later and he informed me that it was in fact the oil pump thats on its way out. He gave a pretty decent quote on everything. I am a car dealer and I get parts and work done at a discounted price. Now since it is still a lot of money I wanted to see if I would be able to just buy the oil pump from Audi and replace it myself. I have been searching for over an hour now and I cant seem to find a DIY or something of the sort telling me how to get to it. I cant even find a thread suggesting where its located. If anyone has any idea where it is and how to change it, any help will be appreciated greatly.

Thanks