Switching jobs = yes
Quitting with nothing lined up = no
Someone who posted earlier said it took them 4 months to find a job after quitting with nothing lined up; I'd consider that a huge success story, since I've seen many people on here and in real life who had a much, much longer job search after quitting a job. If you're made of money and could support yourself for over a year with no income (plus the cost of moving on top of that), maaaaaybe quit with nothing lined up, but I doubt you've got savings that substantial this early in your career. So, start job-hunting like crazy in the town you want to live in, but don't quit your current job just yet. (Thought: can you transfer to a branch of your B4 in the town you want to live in? Could be that you don't hate audit as much as the audit you're doing currently, or even if you still hate it, it could still give you an opportunity to move with more security and get the town you want, then work on getting the job you want.)
But…on the other hand…if you love adventure, and want to have fun stories to tell 5-10 years from now, and aren't as worried about its impact on your career, then maybe just cutting free is the right plan for you. My boyfriend, at one point in his life, basically climbed in his car and drove till the tank got low, then found a way to make things work where he ended up. Slept in his car for awhile, worked whatever quick jobs to make a few bucks he could, etc., but ended up having some crazy stories to tell from it. Part of me wishes I'd done something like that before my career started, cause I can't really see doing it now, but I know the reason I didn't do it then is the same reason I won't do it now: I'm too risk-adverse. If you're not as risk-adverse, and more willing to jump without knowing where you'll land, and truthfully and honestly willing to live out of your car/parks/etc. for awhile till you figure out something better, then heck, go for it! Live a little. Make life a roller coaster. It might make getting back into your career a little rough (you'll have to convince people you're not just a hippy after you've got 1+ years of random odd-jobs and floating around on your resume), but in 5-10 years it won't make a huge impact if you can pull it off, and you'll have more stories to tell. Then on the other hand, some people don't pull it off, and then it would still make a big impact 10 years from now…but hopefully you'd be in the group that could pull it off. π