install isnt that bad, but voltage drops like a *****. i never did any electrical upgrades though. take out the speaker on the rear deck youll have a 10 in hole to let bass through. after a couple of weeks after install be prepared to have everything rattle like hell. their rear view mirrors are 300 to replace so its not cheap when you break them. circuit city had the dash kit for them, i had to look around, lots of places said they dont make them but they do. just be ware lacs dont last