I know you're talking double din and don't like the spacer kits, but I did my '06 FEH with the single din Pioneer Premier DEH-P770MP and a Scosche FD1280A Dash Install Kit and love how it all turned out!

My head unit handles both XM and Sirius integration as well as iPod, has 3 sets of 4V pre outs, front direct access subwoofer control, plays MP3, WMA and Apple AAC format CDs and has a nice remote that fits perfectly in the Scosche tray pocket under the radio.

Here is a picture of it installed: