The Pioneer GM-D1004 Class FD 4-Channel car amplifier is another high quality product from the leader in the car audio industry. It is a 4-channel amplifier that powers your rear and front speakers with at least 45 watts RMS each. In fact, it is almost three times more powerful compared to an aftermarket receiver or factory radio.
The compact size means you can easily install it anywhere – even behind the dash in many vehicles. You can bridge a couple of these amplifiers together and drive a 90-watt subwoofer and power a pair of front speakers at the same time.
The Universal Harnesses feature allows you to get signals from a factory radio’s speaker wiring or an aftermarket receiver’s RCA outputs. That is why so many customers are rating the Pioneer GM-D1004 so highly. Many customers have said that the installation was very easy compared to most of the other products in the same category. Although the connection cables are a bit cheap, they work well.