BOSS Audio Systems BV7335B Single Din, Bluetooth, DVD CD MP3 USB SD AM FM Car Stereo, 3.2 Inch Digital LCD Monitor, Detachable Front Panel, Wireless Remote

this guide will demonstrate how to properly set up your product if you are having any issues the BV 7330 5b is designed for use with four speakers with impedance between 4 ohms to 8 homes this means that every speaker that is wired to the unit should all be the same impedance an impedance load of less than four ohms could damage the unit never bridge or combine the speaker wire outputs when not using four speakers use electrical tape to tape the ends of the unused speaker outputs to prevent a short-circuit never ground the negative speaker terminals to chassis ground overheating of the unit can be caused by poor ventilation in the location where it was installed overheating can also be caused by mismatched speaker load keep in mind that the unit is not designed to run a subwoofer that is directly connected to the unit