Got a call from my dealer yesterday. He said I they're taking orders for the infamous TripTunes now, but was unable to give me an actual ETA. I cut and pasted some info from http://www.fordaccessoriesstore.com -- $50 bucks beats the best price I've seen for the PIE adapter. I wonder why the 05 isn't listed.
TripTunes™
Part Number: 6R3Z-19A464-AA
MSRP: $50.00
Take your tunes on the road! Now you can connect portable audio players (MP3, iPod,® iRiver,® SanDisk,® etc.), plus portable CD and cassette players, right to your in-dash radio. Just plug your player into the harness – a 3.5mm stereo connector provides the interface so you can listen to music through the radio’s speakers and control the volume. Audio connection is housed securely in your vehicle’s glovebox or center console. "Dealer Installation Recommended"
Fits:
Ford Mustang 2007 2006
TripTunes™
Part Number: 6R3Z-19A464-AA
MSRP: $50.00
Take your tunes on the road! Now you can connect portable audio players (MP3, iPod,® iRiver,® SanDisk,® etc.), plus portable CD and cassette players, right to your in-dash radio. Just plug your player into the harness – a 3.5mm stereo connector provides the interface so you can listen to music through the radio’s speakers and control the volume. Audio connection is housed securely in your vehicle’s glovebox or center console. "Dealer Installation Recommended"
Fits:
Ford Mustang 2007 2006