Thanks for clearing that one.
My recollection of what "Engine Charlie" Wilson said is:

"What's good for America is good for General Motors, and vice versa."

Then his remarks were twisted for politcal purposes to suggest that what he said was:
"What is good for GM is good for America!"

But he never said that.

Does anyone have access to a transcript of the exact words?

Whatever the wording, it's not even true. What's good for G.M. is lax CAFE standards, tax loopholes that encourage SUV ownership and high-ridership streetcars replaced with GM buses. What's good for America is the opposite of all that.