1. Custom Audio Designs 750 Nogales Ave, Walnut, CA 91789 Coordinate: 34.02472,-117.8935 Phone: (626) 581-9999
2. Hser Inc 709 Brea Canyon Rd Ste 9, Walnut, CA 91789 Coordinate: 34.00526,-117.84664 Phone: (909) 594-5900