[Dollar2]

Originally Posted by nguyenbk

I meant can i add more power by combining both the stock and aftermarket amps before it goes out to the speakers?

I don't think it is likely. You might be able to bridge each amp section with a section from an aftermarket amp but it won't give you any more volume. You'll get more headroom which will result in cleaner sound at the same high volume. You will want to look into replacing the drivers with ones that are capable of more power as well.