Hi all,

The problem is solved. If you did not read the previous post, the problem was:
SRS light came on, power to radio, heater, cigar lighter, central lock was stopped.

it seams that the beast responsible for all of the above was the overload relay numbered 105 on the volvo microfiche. In Haynes manual that relay is numbered as 2/30. Its exact location in the car is: In the fuse block, nearest the the fuse array and nearest to the center of the car. It is an X+ type of overload fuse, where X+ means, it supplies power to the circuits when the ignition is in I or II, when it is in III (cranking) it protects those circuits from high current.

As soon as I put the new one in, everything turned back to normal. SRS light reset itself, heater, radio... works. The relay costs ~$40 in my bloodsucker dealer. Just incase you may need the information someday.
Ihsan