Radio connector question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

67HEAVEN · 03-10-2011, 01:02 PM

After removing the stock 1989 Silverado AM-FM-Cassette unit, I saw the stamped pinout information on the case about the various connections, like, speakers, etc.

What do the following refer to?

P-LT (beside the terminal marked GROUND)
DIM (next to P-LT on one side and Antenna on the other)
ANTENNA (next to DIM on one side and IGNition on the other)

P-LT? Panel light?
DIM? Something to do with dimming the dash lights including the radio?
ANTENNA? The radio has the typical large antenna connector away from the electrical connectors, so why the extra pinout marked antenna?

Thanks.

03-10-2011, 01:02 PM	#1
67HEAVEN www.67HEAVEN.com Join Date: Oct 2007 Location: SouthCentral Ontario Posts: 625	Radio connector question After removing the stock 1989 Silverado AM-FM-Cassette unit, I saw the stamped pinout information on the case about the various connections, like, speakers, etc. What do the following refer to? P-LT (beside the terminal marked GROUND) DIM (next to P-LT on one side and Antenna on the other) ANTENNA (next to DIM on one side and IGNition on the other) P-LT? Panel light? DIM? Something to do with dimming the dash lights including the radio? ANTENNA? The radio has the typical large antenna connector away from the electrical connectors, so why the extra pinout marked antenna? Thanks. __________________ www.67HEAVEN.com 2004 Z71 Tahoe 4x4 5.3L (factory white monochrome theme) 1989 Silverado K1500 4x4 5.7L sportside (white monochrome theme) 1967 Belair 2-door-post (project) 1967 Corvette 427/435 coupe (now 502/502 red road warrior)



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