For years we 914 owners suffered tinny stereo sound, as the air tubes behind the factory speaker grilles absorbed any bass the speakers could produce. Door speakers solved this problem but who wanted to cut holes in pristine factory door panels? Finally a solution! Using the original foam block behind the passenger bulkhead carpet, we have engineered a setup that provides great bass, while retaining a clean concours look! Kit includes a custom 8 inch audiobahn 500 watt speaker mounted on a custom made plate, audiobahn 800 watt amplifier and a plug-in cable kit.