Delco GM Radio identification model for restoration

[Toty79]

Ciao a tutti gli amici del forum e ben ritrovati, sono un nuovo iscritto e mi congratulo con voi per il vostro forum e vi ringrazio in anticipo.
Come da titolo ho tra le mani una radio Delco GM da restaurare in quanto ha diversi problemi, ho già restaurato 2 di queste radio in passato, ma su questa il problema è che non c'è etichetta per risalire al modello e quindi ad un eventuale schema di riparazione allego foto siete molto più esperti e magari mi potete aiutare, grazie a tutti

 

[Catbox]

Ecco la versione tradotta di Google dall'italiano all'inglese...

Here is the google Italian to English translated version....

Hello to all friends of the forum and welcome back, I am a new member and I congratulate you on your forum and thank you in advance.
As the title suggests I have in my hands a Delco GM radio to be restored as it has several problems, I have already restored 2 of these radios in the past, but on this one the problem is that there is no label to go back to the model and therefore to a possible repair scheme I attach photos you are much more experienced and maybe you can help me, thanks to all

 

[Bextreme04]

That's got to be out of a GMT-400. Probably an early 90's one by the looks of it.

 

[Toty79]

Guys I also ask what is that connector with two brown orange wires for?
In other car radios there has never been

 

[RecklessWOT]

That's got to be out of a GMT-400. Probably an early 90's one by the looks of it.

Dude's avatar says he has a '00 Camaro...

 

[Toty79]

L'avatar di Dude dice che ha una Camaro del 2000...

Sì, il cliente ha smontato l'autoradio da una camaro

 

[Snoots]

I can only agree with @Bextreme04 as to what it came from but finding the schematic from GM is a BIG PITA.
He can try out this site and go from there:

Auto, Engine and Electronics Repair | Austin Public Library

Instructions to repair and maintain automobiles, small engines and consumer electronics.

library.austintexas.gov

 

[Toty79]

Ragazzi vi chiedo anche a cosa serve quel connettore con due fili marrone arancio?
In altre autoradio non c'è mai stato

Could the connector in question have something to do with the display not turning on? it doesn't even show the clock but the car radio is on

 

[CorvairGeek]

Could the connector in question have something to do with the display not turning on? it doesn't even show the clock but the car radio is on

The extra, 2 wire connector is constant 12V for memory, IIRC. There was no constant power in the main connector of that vintage.

 

[Toty79]

Corvair Geek thanks for your info.
I just connected the red to + 12v but still get a display off
what should i link to brown?

 

[CorvairGeek]

The radios just going dead is a common failure. IiRC, no power on the extra connector just makes the radio lose the time for the clock and the radio presets. It will still operate normally with the ignition turned to 'run'.