Wiring New Thermostat coleman to honeywell

Are only five wires used to wire from old coleman to honeywell 2510/2410. This is a heat pump with strip heaters.

old wiring............................ new wiring
Y (Yellow wire) ...........................Y
R (Red wire).............................. R
X (Black wire)............................. ?
L (Blue wire)............................... ?
W2 (White wire)........................ Aux
G (Green wire) ............................G
O (Orange wire).......................... O
...................................................B -- ?

So do the x and l wire to anything on the honeywell, and does the B in the honeywell receive a wire?

Thank You

 

X will wire to C
L is not used on new t-stats. tape it off and tuck in wall.
B is not used for your system.