Alliance Interiors provides interior soft trim and acoustic systems and components to the automotive industry. Alliance Interiors is a technology-driven organization created as a joint venture between Detroit Technologies Inc. and H.P. Pelzer Automotive Systems Inc., a global leader in automotive acoustic systems and applications.Customers choose Alliance Interiors because of our intense commitment to providing quality components and systems that exceed industry standards. Our accredited testing capabilities, fast customer response time and in-house experts provide our customers with the satisfaction they deserve.