I own a 65 year old house.. and the power to my detached garage is supplied by 12-2, and the single and only switch that controls the garage from inside my house is run with 14-3(no ground). When the original 12-2 line suffered a break due to heave frost and improper burial, we dug the old line out and laid conduit at the proper depth and replaced the 12-2 line. Now that we have come into the house to rehook the new line to the already existing switch we have discovered the notes we made have been misplaced. So now I need help in how to reconnect the 14-3 to the 12-2 to get the garage power working again. I believe the way it was previously connected was the 12-2 black to 14-3 red. The whites from both together, and the remaining 14-3 black was capped off and unused. Does this sound correct?