Yikes! creds on getting level 3 and 7, I'm struggling with those still. I'm pretty sure I know which wires to connect on level 3, but I'm not getting an answer when I try the telephone.

Have you figured out what the orange tools are for on level 8? that might help you on the wa

edit: hm, just got level 3. Not sure why, I've done it exactly the same multiple times before.