ok think im bein a bit thick here possibly but i cant find anywhere to put my vacuum hose thru into the car 4 my boost gauge. are there any grommets in the bulkhead? where have other people put theres through??? also how how do i hook up the wiring to the lights on my car so the gauge is illuminated when my lights come on? i was jus thinking of temporarily hooking the wires up to my headunit so it comes on with that. any help much apprieciated!