Powered Subwoofer/ Amp Question

I have a Kenwood powered subwoofer tube and wanted to know if I could connect a more powerful Alpine external amp to it and run the speakers off the new amp?

Can it be done and/or is there anything I should know about doing this?

yes you can, but you'll need to find an opening to run the wire to the subwoofer.

yes you can, but you'll need to find an opening to run the wire to the subwoofer.

I have speaker level inputs on the subwoofer, can't I just connect the amp to them?

the speaker level input for the amp, not the sub. you'll need to find a way to connect the amp's + and - to the sub + and -