Retro! I don't think I have a single cassette left. I had a ton of them when I was a teenager, many moons ago.
Garcia, I thought they were the same but I wasn't sure. I know I don't need the connectors for the bridge. I had the extra plugs and was in the groove, so I just went ahead and ran with it. The connectors look cool and it adds a little wow factor when my buddies come over. lol