Try installing an insulated positive battery cable connection that's accessible from under one of the bumpers- - - -just someplace to clip a jumper cable in case of a dead battery. The ground cable can connect anywhere on the frame. That would also come in handy for jump starting without the risk of getting a spark near the battery and an unintended fireworks display!

Inside those flexible conduits between the pillar and the door, it's also a good idea to use high-flex wire like the type used for voltmeter test leads, etc. to prevent metal fatigue and open circuits under the insulation from metal fatigue caused by opening and closing the door repeatedly. It's easy to find in all gauges and lengths on Ebay.
Jerry


"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!