Anyone done this? I would like to add a battery under the hood. I have a 2005 F350 V10. I already have an upgraded alternator. I've read that it can be done, but I'm looking for someone who might have done it and knows if anything needs to be moved or not. Also, is it necessary to have an isolation setup for the battery? Also, do the batteries have to be matched, or could I run a deep cycle battery as the 2nd one? Thanks, Nick.