i am building a home brew noise toy box my 2 questions are i have this old bull sh** detedtor thingy that i put in one before but i cant control the audio level out of it it was hooked to like a 1 or 2 wat 8 ohm speaker little tinny one in the bs detector how can i use this and control how much it is throwing in to the radio? and then i have an old modulation meter out of an old cbs 1000 base and i want to use it on this too how can i get the meter to move by hooking it in to the audio line and the shield line?