Need clarification on what you are asking.
Replace the radio.
134a
Only the Olds Intrigue with the 3.5 L
5 quarts
Under the glove box.
Dealerships or junkyards.
On the air intake filter box
No car has a "cadillac" converter
Just remove the console and you can get to it.
I found one online for $55 dollars
Yes, it is called the OBD2 code list.
Answer confusedhow to change a timing chain in 1999 Oldsmobile intrigue