not an A body question but.....

The seat belt light comes on briefly upon start up then goes out as it should just the air bag light is on the plug that isnt plugged in comes up from the passenger floor under the carpet but there is nothing for it to plug into? We did this job at my shop which is where the original seat is now so tomorrow we will look at it to see where it plugged into I have seen another photo of a plug under a 07 ram seat today where that plug has a cap maybe a resistor terminator?