How should I connect trolling motor and depth finder to same battery?<br /><br />Hear there may be interference problems if not done right. The battery is an Exide deep cycle with 2 positive posts (1 lug and one with a wing nut) and 2 negative posts. Should I just connect the motor and finder to the separate posts. Is a fuse or RF choke needed? Its a small portable boat and I normally just connect troll motor spade connectors direct to the wing nuts on battery. Now I got depth finder and need to connect it to same battery (its actually a portable that can run off AA batteries but I got a 12v cable cause figured the AA would drain rather quick)