Amp hook up

I have a 2003 honda accord coupe. and was wondering if it was possible to hook up subs to the current stock head unit. i have eperience hooking subs and amps up to a non stock head unit through the pre amp out puts, but i was hoping to keep the stock unit.. Is there anyway i can do this?

well if yo uget liek a huge mono class amp then no but alto of them come with a plug to use the speaker signal beyond but in truth i wouldnt do it. jsut by a new head unit thats meant for it.