I had an intermittent SRS light awhile ago and if IIRC this is what I considered.
May be caused by a weak electrical system, so check battery, charging system, voltage regulator. I also read where a loose ignition cylinder could cause it.
Something loose in the seat belt mechanism. Check connections.
Faulty horn ring. Replacing it solved my problem.
Your SRS light may be related to your other electrical glitches or may be totally unrelated. If there appears to be any connection of the flashing SRS to movement of the steering wheel, then it is just the horn ring, but seems kinda early for this failure.