In a civic it is best to just upgrade the 12V battery to a larger one. I've never been a fan of caps. You don't realy get anything for them. All they do is sometimes reduce dimming.

If you upgrade your battery you get a nice beefier battery that can be nice in the winter and can sustane more current draw if you should adde any other electronics.

My hydroponics experiment

You ever notice how hard it is to lip read cartoon characters?
"Crazy is what the sane call Delta Flyer"