can i add a second amp to the E70??

[drod]

i'm starting to kick myself for not opting for the premium sound..

the premium has a set of speakers in the trunk/tailgate area...

the standard unit doesn't and i would like to add some speakers back there.. (but not one of those boxes that take up room in the trunk)

is there a way that i can add a second amp in the back (2 channel amp) to add a set of speakers back there???

will the stock head unit support a second amp, or do i daisy chain it from the standard 205 amp that is also located in the trunk area??

not sure what my options are....

anyone??