Cruise Control has me stumped

[achillies]

2003 Boxster S (cruise in the dash only)

OK....so I install the harness from Dwight. I already had a shop turn on the cruise. After the install the green dash light now activates but no cruise action. So I take it all apart again and verify everything..I even replaced the column switch. All looks well but again no cruise. 2 things.....1. the shop that activated the cruise was a little unsure and I actually got Loren from renntech to give me the instructions for them. So that could be an issue. 2. I actually got the car to hold 5 mph up and down a hill (without pressing the gas) even though cruise needs to be 25 mph to work.

Please any thoughts?

Thanks
Bob