I have a 87 300E. The outside temp readout is bad. I purchased one off ebay and it has 5 pins. Unfortunately, mine only has 4 pins. I understand there is a way to adapt the 5 pin to work using only the four wires. Does anybody know the procedure?

Thanks.

Sam

__________________
1987 300E
1972 220d
2004 Dodge Ram 2500 T/D
1997 Explorer
1999 F250 V10 Guzzler
2002 Honda VTX 1800

2003 Boxer Named Sir Lancelot (Lance)