wanted to redo my gps installation i currently have. Bought a cheapo 12v cig socket from local auto shop and hooked straight to battery, have it under the front seat taped together. Ordered boostbysmith's harness for 12v accessories that power it when ignition is on. Also have my battery tender pigtail harness laying in the trunk so i can plug in the tender when needed, so i ordered a 12" powerlet 12v socket that plugs into the battery tender lead. My options-install boostbysmith's harness and have the gps wired so it powers up with the ignition on, or install the powerlet socket in the trunk/plugged into the tender lead, and just plug the gps charger into it. Which would u guys prefer with a gps?