Accessing back of fuse box on a '70 Dart

Ha ha...I was in the same predicament last weekend. I was showing my youngest how to replace a brake switch and I just sat there pondering for a minute and then said, get me a ratchet and a 1/2" socket. Two minutes later, driver seat was out and and I was telling him stories of how I "used to" work under the dash when I was much younger.