The VS1053 receives its input bitstream through a serial input bus (SPI).
So, that means pins 11, 12, and 13, and a slave select pin.
You can use the jumper to connect the TXD and RXD pins on SIM to any pins of Arduino D0 – D7.
I can't see where you have the jumpers, so which pins you are using isn't clear.
There is a com switch for selecting the communicate port to UART port or Debug port of SIM900 module as the following figure 7.
I can't see how the switch is set.
There is a Jumper for configuration of RI, one to connect D2, another to connect D14.
Again, I can't see how the jumper is positioned.