Wachovia is known for Customer Service. If you call them and need to be transferred, they will stay with you on the line until you get a live person. In my experience, BofA customer service isn't that great but I dropped them years ago.
I have a 335i and I'm thinking of upgrading my Logic 7. Nothing major though, just HU, Xover, & Speakers. Has anyone been to Trafficjamz in Encino? One of my friend's told me they did a pretty good install using Audison/Hertz on a 335i there.