wolfpuppy

Odd. My '05 Excursion has an accessory position...insert key and turn
counterclockwise, play radio and open windows to heart's content. I haven't
used it enought to know if the radio goes off after 15 minutes, but it does
have the "pull the key and radio stays on for a few minutes or when the door
is opened, whichever comes first" mode, as did my wife's now-gone '04
Freestar.

Well, I believe I can put this puppy to rest. Today, after arriving home
from work, I decided to find out, once and for all, what is what. Here's
what I discovered.
Position 1--start
Position 2--run (radio runs always)
Position 3--off (no radio-key cannot be removed)
Position 4--Lock (key can be removed and the radio will play, in my
case anyway, for 10 minutes. I timed it.)
Position 5--Furthest position counterclockwise. Clock comes on.
Radio will play without shutting off.

This fifth position I did not know existed. I merely assumed that because
the radio played when the engine was shut off, that it would continue to do
so until you exited the vehicle. Evidentaly, this isn't the case. At any
rate, the previous poster was right--there is, in fact, an accessory
position. Never having had a vehicle that would play a radio when the
engine was off confused me, I guess. Now I know where to set the key when I
am waiting and listening. Thanks to all for your imputs.