Odyssey 2150 in hummer h3 ?

[Hummer_82]

Hello all ! im new in this forum , i tried searching for answers in the forum but didnt find anything .. (that might be user error) but then i thought id ask in a new thread..

i have a 07 hummer h3 but with 06 trim.. 3.5l and in this car theres a big amp that sucks oem battery dry in minutes :P so i need a new agm battery .. and was thinking about odyssey 2150s .. does anyone know if i cxan get it in there without killing the car ? can i just remove battery box and so on ? this battery i hope is big enough for both stereo and the coming winch system ..

trying to take care of the car since it has only gone 20 000 miles