i am not suer if this has been asked about but here goes. wile i am driveing the dash lights will flicker bright ...dim...bright...dim... and if i have the switch set to the brightest seting the over head lights some times do the same .It's not a big deal just realy enoying!!! is it a short in the switch or is it something bigger?

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02 liberty soprt
silver
no lift
firestone Destination m/t 225/75/16
soon to have {hella 500 and yakama roof rack}