Digital Media Player Stereo Bluetooth MP3 USB/SD Receiver for 1998-01 GMC Jimmy

good evening folks today I thought would take a look at yet another cheapo Aliexpress product I am this time it's the 7470 mp3 decoder and FM receiver module and this is available for around 1 pound 20 including delivery to the UK as I said from Aliexpress so I thought we'll have a look around the unit cost and we can see it's got a standard USB socket maker SD or transflash card socket and I guess LED and put four buttons in the front controlling the volume a modern scanning and skipping tracks etc and that's a late pop or smoked a piece of plastic just to make the LED display about more readable and bright brighter lighting conditions on the top of the unit we've got our obviously or socket we've got three sockets on here which are four let me see yeah we've got a stereo n steady out and a five volt and put now presumably this can have an input internal you know from if you had to see