Need help! I have a 2008 A4 3.2L cabriolet that has an electrical ghost causing random starting issues. The first time the starter relays were replaced and it started, but when the old ones were put back in it started. The second time the shop did some testing and wasn't getting anything and then all of sudden everything was fine and it started. Now it's the third time and it is sitting in my driveway. Not sure what to do next. I am suspecting it is a poor ground or a poor electrical connection somewhere where the starter relays are. Anyone have any experience, thoughts or ideals?

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