I have an 05 v6 auto and I get a noise at a red light as well. It sounds a bit different from that but it comes from around the shifter. Beats me though.
2005 Performance White 4.0
- JLT CAI/Tuner - 8in. Antenna - CDC Ducktail Spoiler (Molded) - Shaved Decklid/Painted Black - Tinted Taillights/Reflectors - Sequential Taillights - MRT Rear Louvers - 3D Carbon Quarter Window Louvers - 18x10 (Rear) 18x9 (Front) Saleen Style Black Rims - BF Goodrich G-Force Tires - Ford Racing Dual Exhaust (Black Muffler Tips) - 35% Window Tint