Dont know anything about this, if its true or not but i found this on another forum.
Mods: please delete if this is crock or if i cant post this!
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Pioneer Car Amplifiers
Date: 11/07/2003
Supplier: Pioneeer Electronics Australia Pty Ltd
Category: Motor Vehicle Accessories
Product Info: Model Numbers: GM-X572, GM-X574, GM-X972, and GM-D500M.
These Car Amplifiers were introduced into the Australian retail marketplace in May 2003.
Defect details:
If these amplifiers are installed and operated outside the manufacturer's specifications (as set out in the manual supplied with each unit), they can overheat and possibly be a heat or fire hazard.
Consumer action:
Consumers should return the product to the retail location from where it was purchased, for a refund or replacement, even if they believe it was properly installed. For further information call Pioneer directly on 1800 988 268.
Market Coverage: National
Recall Coverage: National