Can we do this? (aka The DIY Cruise Control Thread)

[rhaagusa]

Went by the dealer to get the proper screws which they didn't have, but found out they appear to be 5mm. I checked at Loews and 10/32 does fit loosely in a 5mm nut, but 5mm should fit right.
One more question please: While I was there he showed me a little pack of what I think was 2 black wires, and some zip ties. He said it was required, and it cost $12. At one end was the very small ends that go in the white clip type connectors, and at the other end of one was a screw down round tab type like used for a ground, that fits under a nut or screw head. Couldn't see the other ones end through the baggy packaging.
So anyway what are these wires and are they needed on a 2010 sedan automatic? If so where do they go and are there any directions and pics posted?
Hoping to only go in there once, so thanks very much, Robert