Ive just got a speedo head from a mondeo to install into my trany (rev counter upgrade) , I took the old speedo out of the trany and compeard the 2 , on the trany at the bac bottom middle theres like a curcuit board chip which slots in and out , on the mondeo there was a blank space where the chip would go , anyone have any ideas what its for or does , Ive connected it up and eveything seems to work with the chip in and with it out
