UPDATE to the UPDATE: Sometimes it's the obvious things that get you...the OBD port shares the same fuse as the cig lighter, which I never use. The power port works fine, but I just tested the cig ligher and nothing. Fuse no 3, 20 amp was blown. Don't you know it's subzero outside and the only fuse not in my stash is a 20 a amp. Off to the auto parts store.