Let me add my 2 cents. If you use a deck with a dedicated sub out you will have a much better sound with the OE sub box. Metra makes the wire harness to use it BUT.... have the installer play with resistors on the amp turn-on lead to prevent the pop you'll get. A resistor will make a soft turn-on and not be so alarming when you turn the car on. Also, because of the speed-sensitive volume, the VSS wire is in the radio harness (gray/black) if you get Navigation. Also, the steering wheel control wire is in the harness too. It is light blue/red and there are TWO. One is for radio illumination and if you want to test it, it will only dim the radio if the sunload sensor (top of the dash) is covered.
'04 Silver Marauder w/ sunroof - HID lighting, JL Audio / Eclipse DVD/NAV/iPod/camera, 4.10's, 2" drop, Progard Bumper Baffle, Delete tips, Billet Pedals, BC4E dead pedal, Lidio Tune, Mach1 chin spoiler, K&N CAI, TCE lines, Super40's, tinted tails, SS Inserts, Heinous Control Arms, Real oil gauge, lighted door handles. Currently installing Eaton M112.
2004 Mercury Marauder
Born March 2004, adopted October 2005. Sold January 2012, adopted AGAIN January 2016
2,187 of 3,214
997 in Silver Birch
448 with light flint interior
304 with heated seats
336 with sunroof