System Block Diagram
WARNING: This page is about a different car, the 2022 Subaru WRX. However, it is still accessible from the selected car via links, so may be relevant.
For system block diagram, refer to "System Block Diagram" in "TELEMATICS SYSTEM (DIAGNOSTICS)". Ref. to TELEMATICS SYSTEM (DIAGNOSTICS)>GENERAL DESCRIPTION>SYSTEM BLOCK DIAGRAM