I just talked with crutchfield and they said that the factory JBL amp uses 2 Ohms to the front speakers. Do you agree with that? I can't find any information on the factory JBL amp specs. I see a lot of threads on here where people are installing 4 Ohm speakers in the front - won't using a 4 Ohm speaker on a 2 Ohm amp decrease the volume?. I installed a JVC730BT head unit with the TYTO-01 and am now looking to upgrade my front speakers.