Who knows what those boxes are, but on the website there are no specs of any kind for an amplifier and it talks instead about RECOMMENDED amplifiers "recommended amplifier power: from 2x 120 - 160 Watt / 4 Ohm"
If it came with an amp, they would not need to recommend one.
My first guess is, if you put this in, it won't work properly because you are going from OEM 2 ohm speakers to 4 ohm aftermarket speakers.
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