The wait is almost over. Up until now, many/most 2004, 2005, 2006 Ford owners had no way of plugging their iPods, XM Satellite Radio, Sirius Satellite Radio, etc into the Ford factory stereos. To make matters worse, Ford uses a highly complicated CAN-BUS auxiliary control button which works great, but meant that you needed an adapter that didn't exist to play your iPod directly through the factory stereo.
PIE will begin shipping the PIE FRD04-AUX 2004-Up Ford Auxiliary Input Adapter which will give Ford F150, F250, F350, Mustang, Freestyle, and Focus owners a direct plug-in interface to connect their iPods to the factory stereo. With the new adapter, you can listen to your iPod, XM, Sirius satellite, etc by simply hitting the "AUX" button on the radio, playing & controlling the audio through the factory stereo.
Long story short, I will finally be able to plug my iPod in directly to my stereo. Bye-bye stupid FM modulator!
Precision interface Electronics (P.I.E.) is pleased to introduce the new FRD04-AUX adapter that converts the Rear Seat Entertainment port of specified OEM Ford / Lincoln / Mercury radios to RCA level audio input. The FRD04-AUX has a built-in audio adjustment pot with an input sensitivity range of 0.475 volts to 4.75 volts (peak to peak) allowing the installer to match the audio level of the AUX device to the audio level of the AM, FM, or CD modes of the factory radio. The new part is compatible with the following Ford, Lincoln, and Mercury OEM "CAN-BUS" radios with "AUX" button: FORD LINCOLN F-150 2004-2005 Focus 2005 Mark LT 2006 F-250 2005 Freestyle 2005 F-350 2005 Five hundred 2005 MERCURY F-550 2005 Mustang 2005 Montego 2005 But not compatible if vehicle is equipped with OEM Rear Seat Entertainment (RSE) system, navigation, or factory satellite radio. The Part # FRD04-AUX is short for FoRD 04-style Ford harness (CAN-BUS), AUX for auxiliary audio input through the Rear Seat Entertainment (RSE) port of the OEM Ford / Lincoln / Mercury radio. The following are some types of compatible auxiliary devices: portable MiniDisc, portable MP3 player, portable CD player, mobile VCR/VCP, mobile DVD player, portable DVD player W/ monitor built in, PlayStation game console, satellite radio.