Looking to the community to help solve an issue I've been having with my new live setup. Here's the deal, my amp sits in a rack in our backline. Also in this rack are two vocal processors. Instead of running 5 cables (4 XLR for send/return from the vocal processors + one 1/4" for my bass input from my pedalboard) I bought a Hosa 6x2 snake. 6 XLR and 2 1/4". I changed the gender of two of the XLR's to use as returns, and I have a patchbay in my rack for the gender correction on that end. We drop the snake box up at the front of the stage and then run the single snake back to the rack. All is fine with the XLR's, everything works and sounds great, no complaints from sound guys or anything. Again, I want to be able to plug my 1/4" bass line (from the pedalboard) into the snake box and run it to the amp rack in the same way. It works, but it's noisy. The 1/4" returns on the snake are both TRS. It's only a 30FT snake so it doesn't seem like I should be having this much noise. I bought a 1/4" "hum debugger" device that's supposed to help isolate the grounds so I don't get 60 cycle hum and help in the transition from TS to TRS -but to no avail. It's like a high hissing sound. Can't get rid of it. No idea. This would help me greatly in not having to run another cable back to the rack every night (we are a touring rock band and we take our quickness of setup/teardown very seriously so we don't hold up the show). Any ideas on making this work? Would love for this solution to work but I'm pretty much out of ideas. Thanks in advance!