Just ignore 87DJP2001 like everyone else.

If you could provide a picture of what you are referring to (doesnt have to be your car), I could easily identify the part.

 

I'll see what I can dig up...
**EDIT**

off the same harness as my unhooked ECM (obviously the other 2 connectors) this is the connector and wires, I found out that it DOESN'T go to the box I thought it did, so what do these wires go to?

and this is the box... it looks like something to do with the radio maybe?

 

I don't have that module in my car. I also don't have cruise control. The part number appears to be 25031951, which GM lists a cruise control module.

 

ok, I've got cruise... but where do you see the part number? and no ideas on the harness?
Thanks for all the help so far

 

See the "37AN" on the label? The part number is printed to the upper right of that (upper left in the pic).

And about the harness... Are you referring to the connector that is still connected in the picture you posted? I'm not sure of what that is off-hand. You could either try following it or wait a few more days until I have the ability to compare with my car (on vacation now).

 

Wow, I didn't notice the part numbers and I looked right at the SOB, and you figured it out with my crappy picture of it. Sweet, that gets half of it solved, I can re-assemble that.

Yeah, the clear/yellow that connects to the black one. I tried tracing it back, but it goes up into the dash where I can't see/reach. I don't really WANT to rip my dash all apart to figure it out if possible. No rush, enjoy your vacation.
Thanks some more.