Ok thanks guys. I plan to run my GPS off it, that's about it. What amplitude fuse would be adequate for this? 3amp? 12amp? higher?
There was a red wire that was hardlined to the battery that went down through the firewall when I bought the car...it went to nowhere and still to date I have no idea what it is for. It already had an inline fuse so I just extended the wire to the CL and it worked a charm.

I will rarely use it, but when my GPS is out of battery it could be a life saver...It's just nice to say it works.

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2016 Monsoon Gray Audi Allroad - 21k
2008 Black Mercedes E350 4Matic Sport - 131k
2014 Jeep Wranger Unlimited Sahara - 62k
2003 Gray Mercedes ML350 - 122k