Hi guys,
first of all I'd like to apologize for my bad english, I'm french!
Well, I'm trying to shield my mustang (reissue 69), and my problem is I don't know exactly what should be linked to the ground...I mean I have two separated cavities, and I don't know if I have to solder each one to the ground (on the tone control).
Hope those photographs will help you to understand:

