Review on Metra 70-7552 Radio Wiring Harness: Perfect Fit for Nissan 2007-Up & Subaru 2008-Up Models by Michael Glassburn

As previous reviewers have pointed out, this wiring harness does not have the wiring needed to service a Subaru's steering wheel controls. You can either buy two of these and omit one for extra wiring, or buy a wiring harness that includes all the wiring you need to use the ASWC-1 wiring for steering wheel controls like the one found here: Subaru 20-Pin Harness Nissan head unit/radio wire with steering wheel switch wires It should be clearer in the product information that it doesn't have all the necessary pins as that would have saved me quite a bit of time.