Are these car audio parts compatible?

Jesus

Member
May 13, 2008
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This is my first time setting up a new system in my car so here's where I need some advice. I want to know if all four of these parts are compatible with each other, I looked at the numbers and it all seems fine but I'm not sure what kind of problems I can face, if any with my choices.

-Front speakers: http://www.crutchfield.com/p_107DXI650S/Polk-Audio-DXi-650s.html?tp=95

-Rear speakers: http://www.crutchfield.com/p_107DB651S/Polk-Audio-db651s.html#details-tab

-Subwoofer: http://www.crutchfield.com/p_065G112PD/Boston-Acoustics-G112PD.html?tp=112

-Amp: http://www.crutchfield.com/p_777M4075/Sound-Ordnance-M-4075.html?tp=35782

The reason the speakers are different is because I ordered my front speakers a few weeks back and now those are discontinued so I have to get different ones for the back to replace the stock speakers.
I'm also open to any suggestions if there is a problem with one of my choices.
 
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