What gauge's to go for. I've converted my double din radio to a single din and I have a din free. I've bought a plate which fits in the free din. it has 3 x 52mm holes for the gauges but what make and type do i go for? i've been looking at the swoosh brand. would like to get boost and oil temp gauge but can't deside on the 3rd one. Do i go for air/fuel or oil pressure? also open to suggestions.