Just bought a Sammy King Camel and after plugging in the bottom speaker I browsed the forum for solutions to turning that down to a level that would not cause my ears to bleed. I loved the bass it added but was too loud even in my basement. If I have this correct I believe I need a 500 ohm pot for the bottom speaker (2k ohm for the top) wired in line on the yellow wire. My question is that 1st leg is the ground and where do I attach it. The chassis is wood so that won't work. I'm no expert but I thought grounding it properly will eliminate any buzzing or noise. Not sure if that is true with these units but I think it is with audio wiring in cars. Do you wire it to something or leave it bare?