Need to get Electrical Wiring Diagrams | Subaru Outback Forums I will build and install one for my Outback, and it would be very much easier if I could get a wiring diagram of the car. If anyone has, or can point me to a downloadable wiring diagram, I'd be able to start on it right away.. Please either reply in this thread, or pm me. Whatever your pleasure! Subaru Outback Wiring Diagram | Free Wiring Diagram Assortment of subaru outback wiring diagram. A wiring diagram is a streamlined standard pictorial representation of an electric circuit. It reveals the elements of the circuit as simplified shapes, and the power and also signal links between the tools. Wiring diagram for stock radio | Subaru Outback Forums Although the h/k amp has the same pin-outs as 2009 (see my post on LGT here), Subaru's wiring diagrams show that the premium HU's "speaker" output wires are now shielded in 2010 and 2011 models (a sign that they're now line-level). Subaru appears to have finally switched the under-seat sub accessory to use line-level too.