Originally Posted by rover67
throw a battery in the trunk for emergency starting needs if you want the simple solution.
I use a BEP marine switch in the 60 and it works well. I think it is rated at 300 amps. I have winched with it a lot and pretty much never thought about it after installing it.
I think the write up is here somewhere.
Marco's writeup helped me get the job done. The BEP switch he uses has been superseded by the one I have.