I had a friend that had some Alpine equipment and granted they are a good brand, I prefer MTX myself. Pioneer is a good choice though for good quality at a good price.

'97 Contour GL MTX Blue Stereo: Pioneer Headunit, Pioneer 6x8 3-way all around, MTX 421d Mono Amp, 2 10" MTX Thunder 5500's, Custom Split Box, 1.5 farad capacitor