Alpine CVA-1003

i have been told that it will work just fine. I went and purchased a era-g320 so that it would have pre-amp outputs but the i was told that the ex[ansion unit will work.

the problem that i have run into is that you cant listen to a sorce that is not ai-net. for example the fm tuner does not play.  you can only hear music out of the speaker output off the cva1003 and it is not adjustable. this also applies for the aux input.   I think that there amy just be a wrong setting somewhere, but im still working on it

check ebay...i see the 1004 and up expansion boxes all the time...also i would goto alpine.com and check out the manual for a 1004 and see how they are connected to the head unit