QUOTE (Izerous @ Nov 26 2012, 06:30 PM)
For the door speakers unless you have a special package the door speaker are driven by the head unit not a standalone amp.
Example what I did to my 04
Installed a different head unit with sub out and other features.
Had a class d monoblock (700W RMS) for the subs (2x250W RMS) installed hooked up to sub out of new head unit.
Door speakers (didn't replace those yet) are still hooked up to the head unit directly (as was the OEM approach) only real difference being that the new head unit is capable of 20W/channel and the OEM was somewhere between 10-15W I think.
Could explain the factory stereo hookup for me. i just got an 03 that has some of the infinity (speakers and amp) and they replaced the head with a jvc cd
thats hissy and has problems with audio controls. wanted to do some replacing but can't find any info on oem installationl