Hey bro I Bought a New Kenwood Excellon before I went home for R&R and installed it the first night home. Well I already had a kenwood so the install took only about 10 minutes. I think the deck i bought meets all your requirements including the detachable face. It has 3 sets of 4 volt preamp outputs (front, rear, sub), so it will be easy to add multiple amps for component sets and your sub is on a different channel. It is very easy to use. Comes with a remote, original price is 300 but I have a link here you can get it for $179.00.

http://www.onlinecarstereo.com/CarAudio/ProductDetail.aspx?ProductID=14806

Also I figured id mention it was amazing quality sound with out even tuning after fine tuning the sound it was even better. Hope this helps you out. Oh yeah also this deck goes great with out interiors. Flows seamlessly.