WIRING DIAGRAMS Repair Guide - AutoZone AutoZone Repair Guide for your Chassis Electrical Wiring Diagrams Wiring Diagrams Subaru WRX radio harness pin-out - ae64 2.5 Receiver Wiring 2.5.1 WRX Radio Connector Pin-out. The table below was compiled from all of the Subaru radio wiring diagrams from 1993-2008. Model years 2008-2010 with Navigation also use the same connector and pin-out shown here. 2008-2010 non-Navigation radios have changed to a new 20-pin connector. See this pin-out.