Got an install proplem Caddy

[KnOkIn It 420 10+ year member]

I went to hook up my head unit today in my new car(98 Caddilac deville)And I went to get one of those harness that u use in between the factory harness and the head unt..u know connect the wires with crimps,but they dont make one for my car ,so I was just gonna do what I usally do,but there is a lot more wires in the factory harness that on my head unit,does anyone know where I can like find the wiring diagram of the factory harness? Or have any other suggestions? Thanks for any help

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[KaeZoo 10+ year member]

Should be a standard GM harness, but it might not be behind the head unit. Is there an antenna connection present at the head unit location?

 

[KnOkIn It 420 10+ year member]

Yep,and now I kinda figured out some of the other wires,but I know the reason for the wire but I dont know which wire is which...I am gonna have to talk to some one to get the diagram

 

[KaeZoo 10+ year member]

Was the factory system Bose?

 

[Rattlebrain 10+ year member]

If its the Bose system, it may be different but this might help.

http://www.installdr.com/Harnesses/GM-Wiring.pdf