Having trouble with Crimestopper GMATA-II passlock

Hi, I have the GMATA-II Passlock Bypass unit, and I installed all the wires as I am supposed to. When I test the voltage with the black wire and yellow wire, I get 14.15 Volts, and when i go to the green and gray wires, i get no more than 4.54 Volts and i can't seem to adjust it any higher as the screw doesn't allow for it. What did i do wrong? thanks!Chris

which yellow wire should i be using? have you installed this unit before? it's for a 1999 Grand am gtThanks!Chris

If youhave reached the ignition barrel in the dash thru the radio openning you will see 3 small gage wire wraped into black tape that connect on the side of the barrel. one is white , one is black and the other is yellow. You may remove the barell from it's place if you remove the shift lock cable. Turn the ignition on before if not you wont be able to remove it . Also dont forget to crank the engine once before reading your voltage value.Yes I'm Back 2006...