Here are a few closer pics of the non
-Navi 2008 factory radio (courtesy of Gary, who bought one on eBay).
It's made by Clarion. Model number (on front) is CZ641U6. Model number on the label is PF-2950A-A. Part number 86201FG640.
(click on these thumbnails to see full-sized images)
Label on top:
Close-up of new-style 20-pin power/speaker connector:
The connector has two rows of 9 smaller pins, plus two larger pins on the far left and right sides.
It's physically the same as the one on the 2007 Nisson Maxima and Versa, although the pin assignments may be different. [UPDATED:] Most of the pin assignments are the same
. I already know that Metra's aftermarket harnesses for the Nissan (into car: 70-7552, and into radio or reverse: 71-7552) do not include wires for ground or illumination.
As wkderf wrote in post #1, the Subaru car's harness has 13 wires populated — 4 speakers, ground, +12V battery (constant), +12V accessory (switched), antenna remote control, and illumination.
According to Subaru's wiring diagram, the car's harness has two
pins for illumination and dimmer, just like on the 14-pin harness in older/other years/models. The new harness also has the two wires for "satellite switches" (remote control buttons on the steering wheel), and adds two wires for CAN bus. 18 wires total.
UPDATED: I've posted the complete pin-out here. More information is in my "Stock HU Info" thread here.