Hi Stan and others.
Here is another solution to the MP3 sound module issue. This device is an all-in-one. It has a player and an amp. All you need to do is insert the SD card and apply power. It has volume control and plays the 1st file on the card when powered. it is $1.48 on ebay.
<rEAAOSwlxhZheDA" target="_blank">https://www.ebay.com/itm/Mp3-L...1:grEAAOSwlxhZheDA>