hey everyone. i hope this is the right place for this thread. ok, im looking at switching out the dash thing [i have the one where it only shoes if ur doors are open] and installing a HUD. i was wondering if anyone could give me a rundown of what all i need to do to make this happen. the hud i tells you alot of stuff about fuel and MPG and everything like that, so i didnt know what all i have to do. is it just a matter of tearing out the old system and splicing and wiring in the HUD? or do i have to put sensors in and stuff. HELP ME OUT PLEASE!