Dan_ed - Great advice. Mounting screws are too fat. I was afraid to squeeze them as they are so fragile, and the toothpick/similiar device is a great idea.
Scottz - thanks for the advice. The phone section in the MF is supposed to handle MC cart, and I will check on the gain.
Scottz - thanks for the advice. The phone section in the MF is supposed to handle MC cart, and I will check on the gain.