OEM Crossover only bypass amplifier - non-HK (E31 / E32 / E34 / E36)

This is an internally modified OEM HiFi System amplifier that internally bypasses the OEM amplifier electronics, converting the OEM amplifier into a crossover only.  This permits running high power aftermarket radios or amplifiers with the factory wiring and speakers.  We do recommend replacing the factory speakers on E36 models.NOTE: Please specify your chassis version and body type when orderingNOTE:  Harmon Kardon "Top HiFi" systems use a different amplifier and speaker setup that is not compatible with these units.