Hey Luke i need some install help, I just ordered the AVIC-F500BT and ND-G500 for my 03 330ci, and was wondering if i can install the ND-G500 (which is a amp that enbles u to hardwire the f500bt) to my stereo which is factory harmon kardon. I am afraid of blowing the factory amp. I was thinking of installing a PAC OEM 2 to bring back the signal to preamp. Is this a good idea? But then I am afraid of distorting the signal to the speakers, which will be amplifed by ND-G500 and then de-amplifed, and then re-amplifed by the factory amp. Or would i be fine with out the PAC? Any help i can get
