Negative grounding my tower - bad mojo or?
So I am building a custom light bar for my tower because I can't find one that has everything I want the way I want it. I am thinking about running a ground wire to the mounting bolts of the tower within the hull so the whole tower will have a negative ground. Then rather than running an additional wire down the tube and into the cabin I can just ground the lights directly to the tower itself up above, maybe within the mounting bolts or brackets or at least close by.
However I'm no electrician or expert so I'm wondering if that can cause any problems... Such as buzzing in my tower speakers, generating excessive heat, battery draw, etc. Right now the only wiring running through my tower is double shielded stereo speaker wires to the cans above.
And yes, I tend to come up with these brilliant ideas that don't always turn out that way in the end... Hence the post here.