So I bought a new Metra AX-TOYUSB for the USB, he had installed the wrong one, go that working.
Found the schematics for the HD receiver and found the problem, got that working.
Got some black double sided tape and mounted the GPS receiver in the lower
corner of the window, can't even noticed...
Ok this happened 18 months ago, I've been meaning to write this up, however raisin happens. Saw a post on Facebook about someone wanting to get a HU installed and figured "well time to write this".
I picked up my 15 STI Lmt in march of 2015. I had the car a week and thought "This HU has GOT to...