While digging through my 69 stuff I came across a part that was takin off the dash support. It looks like some sort of heat sink with fins on it. I looked in my 69 assembly manual and found it on page 431 UPC U57 A4. It is listed as GM# 7310461 Convector & lead asm. Is this part just for tape players (8 track), or was it also installed in other options? My 69 didn't have any of the original radio stuff when I got it back in 1988.