I got a system installed the other day (2 12" alpine type R's, 1800 watt Rockford Fosgate amp, component system, alpine 5x7s, a capaciter, and dynamat trunk kit). My trip computer has been wierd since then. The miles to empty is really screwed up. Right now I am at 0 miles to empty and have 1/4 tank of gas. I posted about this the other day and someone told me to push reset the next time I got gas and I did but it didn't reset. I got like $15 gas and the miles to empty went from like 30 to 50. Anyone know what could cause this??? Also, even with the dynamat, I still have a lot of rattling. Some of it is coming from the gas tank under the car...anything to do about that? :feedback