Radio Help: Which wire for dimmable illumination?
I have all the connections figured out except one: dimmable illumination.
The new one (an Alpine) uses an orange wire exiting its connector for that feature. I've looked over the factory service manual completely and for the life of me I can't find which wire coming into the radio connectors performs that function.
In fact, the connectors themselves don't seem to appear in the the factory service manual at all.
Car is a 1985 that originally had the Bose system.






I have all the connections figured out except one: dimmable illumination.
The new one (an Alpine) uses an orange wire exiting its connector for that feature. I've looked over the factory service manual completely and for the life of me I can't find which wire coming into the radio connectors performs that function.
In fact, the connectors themselves don't seem to appear in the the factory service manual at all.
Car is a 1985 that originally had the Bose system.
https://www.comvette.com/blogs/2019-...Connectors.php
Last edited by LWesthaver; May 18, 2026 at 07:19 PM.
https://www.comvette.com/blog_2019-04-26.php
Thank you brother!







