in the cmoy amp, there are the in/out jacks, the on/off switch and the pot. which one of these do i need to ground and how do i ground something? also, how would i wire the in/out, pot, and switch. for example would i wire the in jack to the volume control then the volume control to the in points on the board then to the out jack. where do i wire the on/off switch to? im new to this diy stuff and am jus unclear on these things. your help would really be aprreciated.