Ledetent

Hello! I'm new to the forum and have a D3 on order. I've downloaded the manuals to get a head start on how to wire it up. Have a question... My plan is to try and wire up 2 front and 2 back speakers to D3 and use the internal amp. I have a sub that will have its own amp outside of the D3. Is it possible to wire it this way? Will fader work? I think if I had a separate amp for the 4 speakers I could use the RCA's and everything would work. Thanks for the help! Jimmy Louisiana