DIY amplified Bluetooth MP3 player

Here's a video showing a little project I made.
Music: www.bensound.com
Materials used:
A blue metal project box 250mm x 190mm x 110mm (painted matte black and chrome).
A bluetooth/mp3 player (search for bluetooth speakers)
A pair of 40mm x 40mm analogue VU meters 500uA
A VU meter driver board
2 white 12V leds for the VU meters (I used white dashboard LEDs)
A 12V 5A power supply
A 12V Preamplifier XR1075 BBE Sound Surround Effect Amplifier Preamp Board
A TDA7492 2x50W D Class Digital Amplifier Board