Rockford fostgate BD1501 no outpout, need help

hello, to many lines for signature, here is the answer for tools.
Oscilloscope : no
Multimeter : standard with capacitance
Type of signal source : mp3 reader with RCA output
Soldering iron : standard, temp regulation to 500°c
Desoldering pump : no, solder wick
Power supply : stp3005


thx
 
Sorry attached file was missing
i have a red wire and a green wire are cut, but in this resin i can't find the other part of the wires.
this could be normal ??
 

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