Questions on dual Hdd Mod HELP!

DIE NASSSTY

BANNED
Sep 3, 2012
65
0
Hello guys!
I have a Slim Trinity with a Demon and Coolrunner RevC. I have a hacked nand and a stock one for live. My issue is having to switch hdds every time I switch nands. I have been following tutorials posted here about dual hdd mods using a switch or a relay. I plan to attempt the relay method by theagent but I am not clear on how to go about it. Where can i draw the voltages required by each hdd and how do I wire the relay so that it works accordingly with the demon and coolrunner via sync button?? Any help is appreciated.

Thanks
-DIE NASSSTY