Pioneer Premier DEH-P520 Manuel D'installation page 7

Blue/white
To Auto-antenna relay control terminal
(max. 300 mA 12 V DC).
Left
Front speaker
White
+
≠
White/black
Green
Green/black
Do not connect anything to these speaker leads.
Gray
+
≠
Gray/black
Violet
+
≠
Violet/black
Note:
Change the Initial Setting of this product.
(Refer to the Operation Manual.)
Right
Front speaker
Subwoofer
Fig. 3
6