Lund's specially designed and patent pending Police Audio visual Safety System (PASS) encloses the siren speaker(s) in the upright of the company's bumper system, greatly improving sound on the ground plane in front of your vehicle. PASS solves speaker mounting issues on new vehicles because the speaker is no longer mounted behind the bumper or fascia. With dual speakers, multiple sirens and/or tones can be used independently. Multiple lighting options for front and side LEDs are available with an optional wiring harness for easy installation. The PASS is currently available for Crown Vic, Impala, and Charger sedans, and for Expedition, Explorer, and Tahoe SUVs.