Old wires
W2 -> jumped to E = white wire
Y = Yellow wire
G = Green wire
R = Red wire
B = Light Blue wire
X = Tan wire

I think it should go,
WB = heating = White
Y1 = heat pump compressor = Yellow
G = fan = Green
Y/O = air conditioning compressor = Light Blue
RH (24 volt) already jumped to RC (red 24 volt cook) = Red wire into RH
Now I have the Tan wire left over.

What am I missing?