I am at my witts end with trying to wire this T-stat I am removing an old honeywell heatpump M# T874D1165 and replacing it with an RTH7400 programmable I have 7 wires running out of wall, here's what I have, BROWN and WHITE hooked to W-2 (with jumper going to Y-2) YELLOW going to Y-1 , BLUE going to Y-2(with jumper going to W-2) ORANGE going to, O RED going to R and GREEN going to G any help will be thanked I have tried contacting HONEYWELL but there service tech is stumped as well

First... what is the full model number and make of your heat pump unit, so I can look up the wiring schematic...

It's a goodman m# cple6o-ic