Wiring for XC90 radio /color codes

[XC90Dave]

I installed an aftermarket radio in my 2004 XC90 T6 and wasted 2 hours trying to find the polarity of speaker wiring. Rather than remove the door panel to find the answer I finally found this: Maybe save others some time & aggravation.

12V DC Battery(Constant) Red Radio pin A1 C10 20 amp Relay box behind left side of dash
Switched Accessory Violet Radio pin A2 F28 5 amp CEM behind left side of dash
Ground Brown
Power Antenna Blue/white
Left Front + Gray/red
Left Front - Gray
Right Front + Gray/red
Right Front - Gray
Left Rear + Gray/white
Left Rear - Gray
Right Rear + Gray/white
Right Rear - Gray
AT SPEAKERS
Wire Function Color Note
Left Front Tweeter + Gray/red
Left Front Tweeter - Gray
Right Front Tweeter + Gray/red
Right Front Tweeter - Gray
Left Rear Tweeter + Gray/white
Left Rear Tweeter - Gray
Right Rear Tweeter + Gray/white
Right Rear Tweeter - Gray
Available Notes
Notes
CEM: Central Electronic Module
The CD CHANGER & the RTI control module are each powered thru a RED / white wire; the fuse is F6 of 7.5 amperes in the rear electronic module at left rear corner of trunk.