2000 Volvo V-70

I have a 2000 V-70, I removed the steering wheel to dye it and all went well. After that I took the seats out to shampoo the carpet. The carpet was wet, so I hooked the battery back up and started it to take it out of the garage so it would dry. Then unhooked the battery again. Now I have the seats back in and that SRS light is on. I unhooked the Battery to try to clear it but it keeps coming on. I took the air bag out of the steering wheel again to make sure everything was hooked up and it looks good. I then checked the plugs under the seat to make sure everything is hooked there and it was OK. Still SRS light. Can anybody help me?