[NoiSeeVT]

Really there is no good way to hook them up. Are they the same amp? There is an article in this months car audio and electronics about this very topic but this is for a dual voice coil sub.

The problem is that both amps needs to have the exact same output voltage, which you need the gains matched. Not easy to do with multimeters and a proper sign wave disk, plus ensuring the deck is set at the oprimal volume level, if not you will cook the amps and the sub.

Really this is a bad idea, will lead to a lot of damage. Hook 1 amp up leave the other for show if that is the way you want to go.

David