Hi, it won't on an original 96-95 radio CD in a Caprice Impala .
The AUX on the CD equipped radio was to run an external cassette
That is to say the cassette equipped original theftloc delco radio can run an Ipod through one of those adapters , BUT a CD equipped original theftloc delco radio did not have "the brains" to run one.
The the only way I know around this , and have control of the Ipod from the dash is either
Get a original cassette player type radio or
Get the CD radio from a 2002 Camaro or S10 truck.
They have the same appearance as the stock radio but have the ability to operate the Ipod .
I have done this with a PAC and the later radio
Looking on their sight , it seems the exact part I bought has been replaced by
Pac-Audio.com Product Details | iPod Integration for your car and More by Pac-Audio - Connecting you to the future
Now all this said, mine is 80%
Most of the time it works seamlessly with volume, selection, etc.
Other times the Ipod starts and is on "pause"
I have to pick up the Ipod and start it and then the radio will not let me change songs.
Turning everything off, unplugging Ipod usually
will correct but not always.