I agree that having a temp gauge would prove quite useful. It's depressing to know that last generations Impreza had a temp and oil pressure gauge. I plan on towing a small uhaul trailer cross country and would love a solution.
@Auskip07 how does the guardian hook up? Could work if you put it by the MPG/Message Center area
@Paradis I like that! But seems a bit temporary to me. Good to know that I have a cheap option though!
Has anyone installed an electric gauge? Would rather not run a mechanical one.