sound amplifier

  I have an old music center, which eventually "moved" to the country, but I really like it. Appearance of the apparatus is so-so, but the sound is simply gorgeous! I especially admire his low frequency amplifier. The music center is in good condition, works great. There is a CD-changer for three discs, two decks, one of which records. But, unfortunately, there is no way to read information from modern media - USB drives and flash memory cards in MicroSD format. side of which there are slots for connecting USB and microSD memory cards. In addition, the player controls are displayed on the panel and there is a small display. The device also contains an FM tuner. It is powered by 5 volts (although there are also models with a 12 V supply). There are exactly the same models with a Bluetooth module. After evaluating the size and appearance of the device, I decided to embed the player in my music center. About how I did it, and what came of it, I will tell you today. Required Tool...