1, wiring: I don't need to say more about circuit knowledge. Just connect the positive electrodes (red wires) one by one. The negative electrode is directly grounded.
2. Installation position of subwoofer: This has always been a headache for everyone, because there is really no good place for you to install. I tried my best to put it under the headlight position \ code table position \ bumper, and tied it with tie tape; Portable cars: some are placed at the pedal position, under the seat and in the trunk (the trunk should be branded with a soldering iron with many small holes, otherwise the sound will not be transmitted)
3, flashing lights: use a glue called (three seconds) to stick them together and fix them. But these must be approved by the owner. If he doesn't want to, we can't help it, because everyone else wants to.