Hugg727

Question for those who have done the amp upgrade to the non-bose setup. I am considering buying the Audison AP4.9 Bit which takes in the speaker level signal from the mmi. The audison box has the ability to produce its own sub signal from either the Front or Rear signals. I know that there is a separate sub speaker out on the mmi "amp". Does anyone know if the signal coming out of the mmi is full range signal to the Front or rear speakers? I hope so, as I would rather send a full signal to the AP4.9 and have a configurable crossover for the sub. Thanks