Wire Harnesses?

I'm stuck on this one.

Anybody know who to get the Aux Audio (9 pin connector) cable for the radio?

And the remote keyless entry receiver harness (from the receiver to the dash)?

I'm completely stuck, and I don't want to be kicked in the shins with the cost by my mechanic (who, of course, boasts he can get it straight from GM). I'd like to know if there's any donors or parts cars on the forum? Or if anyone knows of a good place to try.

Sounds like stuff any car audio/alarm shop should be familiar with. If he can get it from GM so can you?

what year is your car?? I might be able to help you

'99, 3.1, pretty vanilla car, nothing special aside from what I put in it. (trunk release, tach cluster, etc)