Solved new heated bed. which wire is which

i ordered a new heated bed for my R1 and the bed that i received has a ribbon cable. my old bed had a red, black and connector on it. the ribbon cable is all one color

 

the two bundles are the heater and the other 2 wires are the thermistor.

There's no polarity. If you're concerned measure them with a multimeter. The bed should be around 1.4ohms and the thermistor around 100k

 

cool thanks