On Saturday 14 December 2024 11:36:11 pm Gooey via groups.io wrote:
I've got a Delco/GM Radio I'd like to wire up an use in my shop. *I found *a
connector <> but it does* NOT *come
with instructions to tell one which wire goes here, to what or from what.
As well they have pig tail leads to every one of 24 pins and my most basic
radio *(DELCO PN 15766185 CI: DCSL SER MAN 3 *89DCSLM222735248*)* likely
uses just those to power, illumination and speakers.
The vendor selling the correct connector for twenty dollars writes *"
Identification of the wires in your vehicle, as well as pin location of
those wires in the plug, will be up to you. Yes, research will be required
and it may be challenging. GM did not use the same wires for all the
vehicles that had this plug, so we cannot provide one plug that is going to
have easy-to-determine wire functions for all vehicles. "*
So, my question "Does anyone know how/where I might be able to get the pin
out for the connector on this radio?" Preferably at no cost :)
I wish you luck with that...
Mostly because Delco. Back when I was repairing a lot of stuff I would often go and visit a friend who worked at a much larger repair business. They did factory service for Delco, which required a fairly hefty investment in some specialized equipment. And what he told me was that they were *very* proprietary about their information, and that if any of it got out, they could lose their authorization and their investment in all of that specialized stuff. They were a fairly large business, and the Delco stuff constituted a nontrivial portion of that business.
I have a car radio here, and attached to it is a little FM booster, that used to hang under the dash of one particular vehicle. In addition to power there's wiring for four speakers, and in some cses (not sure about this particular radio) there will be wiring for lighting, separate from radio power because it'll be dimmable along with the rest of the dash lighting. I'm in no particular hurry to try and do anything with it as the AGM battery that I have here that I was planning to use for my ham radio stuff has apparently decided to go to sleep, pretty much permanently. Then there's a need to get an antenna for it, not all that much, but still something I'd have to go and get.
Best thing I can suggest is to try and trace stuff out, and see which wire goes where. This will be complicated by the fact that there may be two separate wires for any given speaker, due to the power amplifier being in a BTL configuration, as in no common ground connection. One possible source for wiring info is Haynes manuals, typically available at Autozone. Pretty many of those have wiring diagrams in the back. If you know what vehicle used that radio you could probably go in there and look at one of those manuals, see if it has the info you need. It'd save you a bunch of timek for sure.
--
Member of the toughest, meanest, deadliest, most unrelenting -- and
ablest -- form of life in this section of space, ?a critter that can
be killed but can't be tamed. ?--Robert A. Heinlein, "The Puppet Masters"
-
Information is more dangerous than cannon to a society ruled by lies. --James
M Dakin
