Joined up here because I was actually scowering the internet for a How To: DIY Hella Supertone wiring harness.
I've got an '11 WRX DGM hatchback. It's currently stock performance with a few bells and whistles (Rally Armour Flaps, Perrin adjustable shift knob, Pioneer AVH-4400bh radio, and a fresh pair of Hella Supertones I'm now looking to install.
Once the 2012 bonus and/or tax returns get in, I intend on going Stage2 with a full TBE. Nothing else too crazy planned as this baby is my DD.