I'm adapting a 180W 1U power supply to be a DC backbone for a couple components, including a PicoPSU. What I would like to do is remove all the psu's wires and insert 3 or 4 female 1/4" (3.5mm) audio jacks (ala Orac3). Then create a couple of custom cables which have a male audio jack on one end, and the necessary DC plug on the other. Before I get into the nitty gritty, I'd like to hear opinions on two matters: First, I can't decide if I want to use TRS (3 contact) or TRRS (4 contact) connectors; in other words, I'm not sure if I want to maintain the two ground wires typically present in a power supply, or combine them into one. Second, what order should I place each wire on the connector? This may be irrelevant, since hot swapping will be impossible; due to the nature of audio jacks, you can't insert or remove one without shorting adjacent contacts. Thanks for any input!