Very high pitched vibrating squeeling noise-speedometer area

about 1000 miles ago a very high pitched squeeling -vibrating noise started ....seems to be in the area of the speedometer. It starts at 60 mph every time and gets louder as I increase speed ....as soon as I drop below 60 mph it quits .No fluctuations in the speedometer needle ...everything else seems normal...except my compass -temp. display which is out and I read the possible fix on that , but this squeeling noise is VERY irritating and needs to be fixed soon . Does this truck have a speedo cable?? I thought it was all electronic?? I`m new to the forum and live on Pine Island Fl. ...seems to be many knowledgable folks on this forum ....thanks for any help .........

 

pretty sure there is no speedo cable.... other than that I can't help you.

hopefully someone else knows something cause I know that would drive me nuts.

bump

oh and hey, welcome to TW