Newbie accessory question

All of your accessories need to be set up so they are on an ignition run type circuit. You never want them run to a fuse block directly from the battery, that makes then "hot" all of the time. If the car is parked for a long period of time without a battery tender type charger, the accessories that have a background memory will slowly sap the battery. Even modern cars have that problem, a case in point is my Dodge Ram, if I don't run it for we'll say two weeks & don't keep a trickle charger on it the radio/clock memory will sap the battery to nothing.