Hey guys, I'm new to this AVIC stuff and was wondering if this works GREAT with a car stereo system? I am going to hook up 2 12" Type R's with a Rockford Amp then have 4 Type S door speakers hooked up to another separate amp. Just wondering if this avic will work great with it.. or would it not matter because I am using an amp for my door speakers. or would you guys prefer me getting the premier version instead. thanks guys.