I grabbed a good looking td6141 radio at the pick n pull last week off a 89 or 90 740 (can't remember for sure!) thinking it would be a easy plug in replacement for the failed td6141 unit in my 87 745 - but I got a surprise when I pulled my old one - both are td6141 radios and look identical from the front, but the wiring harnesses and wire colors are completely different. Does anyone have wiring diagrams that can help me sort out the puzzle of how to connect the later radio in my 87?

The 87 has the following wires:

Orange and Black - they both go to a separate connector and were not attached to anything.

Yellow
Brown
Red
Green
Black
Blue
Grey

Also a heavier black ground wire that attached to a grounding screw on the back plate.


The newer td6141 radio has the following wires:

Yellow with a black line - this wire joins at the connector with a black wire that leads to a small metal cylinder that is about the size of a AA battery but shorter that is attached to the grounding screw on the back plate of the radio. (The old radio didn't have the small cylinder).

Red
GREEN
BLACK
GREEN WITH AN ORANGE STRIPE
YELLOW


Thanks in advance for any help!!

Jim