the head unit wont say bose... the speakers however should some where but since you are saying you have 6 speakers im guessing its not bose system... but the back speakers if they have a small circuit board should be specified as the "subs" i guess just try different wireing combos then.

 

i have come to the conclusion I have a monsoon stereo. but I stil have no middle speakers. Im just going to get my amp wiring kit and install my amps.