According to the '72 Mopar Parts Catalog, item 2884 863 is the crossover for the speaker system for your stereo. That seems to fit the description. I guess you could unplug the wires and see if the speakers still work, assuming you have the factory radio still there. Chris in LA 67 Crown 78 NYB Salon Robin Giesbrecht (robings@xxxxxxxxxxx) wrote: > Anyone know what this part is? I found it under the dash on the passenger > side of my 72 Imperial with six wires going to it. It was not secured to > anything, just sitting on top of the conditioned air duct. > > Cletron Mark 1 23498 2884863