The Plus series amplifiers from Wavtech, are simply some of the most adaptable, flexible amplifiers on the market. They can tie into almost any factory audio system, without issue. Channel summing & blend control, crossover control galore (HP,LP,BP) load generating inputs to help your factory radio sound great, oh... and did I mention they have tons of power and sound fantastic too?
75 watts RMS x 4 channels
500 watts RMS x 1 channel
And the guys at Wavtech are pretty modest on their power ratings, it does a lot more than that!