Sorry I couldn't get the pics scanned earlier - I've been sidetracked the past two days repairing my girlfriend's iPhone (took an unplanned trip through the washer...) Anyway, the pinout that I have for the 2000 Ex is different from what MarT posted, so I'll post mine also. I guess Ford has gone through a few revisions of the connector...
(includes wire assignments for CD Player, Message Center, Rear Controls, and Aux Power - cell phone wasn't an option in 2000)
1 MC Power (Hot in Run)
2 -
3 Oil Level Sense (MC)
4 -
5 Fuel Flow (MC)
6 Tach Input (MC)
7 -
8 Instrument Illumination
9 Fuel Level (MC)
10 Chime Output (MC)
11 Oil Temp (MC)
12 -
13 -
14 -
15 -
16 -
17 MC Power (Always Hot)
18 -
19 -
20 English/Metric (MC)
21 Speed Sensor (MC)
22 Engine Temp (MC)
23 -
24 -
25 -
26 -
27 Rear Blower Power (Hot in Run)
28 -
29 LR Speaker + (to Speaker)
30 -
31 -
32 -
33 PCM Signal Ground
34 -
35 -
36 RR Speaker + (to Speaker)
37 Auxilary Power Jack +
38 Power Ground
39 Rear Blower (Ground when blower on)
40 RR Speaker - (to Speaker)
41 -
42 -
43 Engine Select (MC)
44 Illumination Feed (MC Display)
45 Washer Fluid Sensor (MC)
46 -
47 -
48 Radio Ground
49 -
50 LR Speaker - (to Speaker)
51 Audio Corporate Protocol A
52 Audio Corporate Protocol B
53 Power RICP/CD Always On
54 -
55 ASYS On
56 RR Speaker + (to RICP)
57 RR Speaker - (to RICP)
58 -
59 -
60 LR Speaker - (to RICP)
61 LR Speaker + (to RICP)
62 CD Signal Ground
63 CD L-
64 CD R+
65 CD L+
66 CD R-