Car Audio Transparent Fusetron Fuse Box Insurance Block Fuse HolderDescription: Wiring Specifications: 0GA (4A) * 1IN                 + 0GA (4GA) * 1OUT Product installation: whole gilded MANL Insurance sheet one Quantity: one Name: Insurance Block Uses: mainly used to connect audio power lines. Role: to prevent excessive current protection appliances.  Package Included: 1 X Car Audio Fuse Holder