Im looking for a voltage gauge for the '00 LS, i have a second battery in the trunk. i wmant to be able to monitor both from one gauge, but i cant seem to find anyone who sells a single gauge that can geve voltage readings from 2 batteries. i dont want two gauges, one for each battery, that takes up too much room. Anyone heard of a gauge like this?

 

cant say i have...

 

You shouldn't really need to monitor them seperately unless you're going to isolate them and run them independently; like running the stereo off of only the battery in the trunk while the car is off. Otherwise, they'll both read what the car's system voltage is, so one gauge is enough.

 

The batteries are isolated, one for starting and engine electrical the other for the sound system.

 

If you or someone you know has some electrical knowledge, you may be able to wire up a switch to any volt meter. You could then use the switch to toggle back and forth between the two batteries using one gauge. There's also a product called a batterybug that attaches to your battery. You can't monitor it from inside the car, but it gives you readouts of the battery health/volts etc http://www.amazon.com/Argus-BB-SBM12.../dp/B000NV7OBE