Looking for some help.....

2006 Crossfire Conv. Spoiler stuck up & roof in/operative. Starts & drives fine.
Electrical Burning smell from engine traced to the BCM. Removed & opened up to find the BCM board has actually burnt/melted.
Replaced with another BCM &.... same again within seconds its smoking..... there must be a short somewhere in the wiring.

Just wondering if anyone has come across this before or can give me any pointers.

Wiring difficult to trace & just seems to dissapear either way.

Thanks