2004 Subaru Forester Car Audio Wiring Diagram Whether your an expert Subaru mobile electronics installer, Subaru performance fan, Subaru after market fanatic or a novice Subaru enthusiast with a 2004 Subaru Forester, a Subaru car stereo wiring diagram can save yourself a lot of time. Automotive wiring in Subaru vehicles are becoming increasing more difficult to identify due to the installation of more advanced factory electronics. 2004 Subaru Forester Stereo Wiring - the12volt 2004 Subaru Forester Stereo Wiring - Don't see the wiring for stereo on here yet. Please help!!..