This sounds like another vehicle I repaired with similiar problem! It was an older Ford Escort,and this problem was caused by a worn/faulty ignition switch.The Electrical Part,NOT the Key Cylinder,which is seperate.You didn't state what kind of car you own,but,this seems most likely to be the cause,as the ignition switch is used thousands of times,and controls all the items you mentioned,when the key is on.Your Ignition Switch is Worn Out.Good Luck.

Anthony Cindrich

I suspect your battery cable is not tight enough and/or the connections have a lot of white corrosion around them. If there's corrosion, scrub it off with a wire brush (a stiff bristle toothbrush might do).

Otherwise, see if you can move the battery cable clockwise or counter-clockwise with a grip of your hand; if so, it needs to be tightened snugly.

A more serious scenario is that your alternator brushes are worn and not making continual contact for re-charging the battery, which could account for the intermittant and degrading signal flash performance. A loose alternator belt or one that a little oil has leaked onto could also cause intermittant charging of the battery (do you hear occasional squeals ...). Your car radio volume would also weaken, and driving at night would show noticeably dim headlights if you were to view them outside from the front (with the car running, but in park of course ...)

You don't want to get stuck in highway conjestion stop and starts, so get thee to thy favorite garage tute suite, before minor becomes major.

It could be a combination involving any of these factors.

M. R. Lawrence, Publisher, Midday