i was wondering if i could get the trans temp probe. i left the one i had in my previous truck. i have the ev series gauges and it has the weather pack connection on it. also im looking to get a fuel psi gauge. i have the white faced red pointer gauges and would like to know if i would be better off getting the ev series or the ev2 series gauge. im trying to match them up to what i currently have and from what ive seen the ev2 would work nicely. does the ev2 have to have a isolater like the ev series gauges?