Mercedes Battery Isolator
I've decided that I want to install a battery isolator with my carputer but I have run into a problem. There are two wires connected to the (+) terminal (duh), a 0 gauge and a 4 guage. I assumed that the 0 gauge wire connects to the alternater and the 4 gauge powers stuff in the car. (Perhaps my assumptions are part of the confusion, but the battery is in the trunk and the alternater is wedged in the engine pretty good, so I am trying to avoid major engine deconstruction.) However, when I attach the 0 gauge wire the the alternater post (leaving the 4 gauge wire attached to the battery) and the battery to its proper post, the car does not start. I also tried the same thing with the 0 gauge and the 4 gauge wire switched with no success. It seems that unless both wires are connected to the battery, the car will not start. Could anyone offer some explaination as to what I could do? Or even better, is there anyone who has installed a battery isolator in a Mercedes who could give me some ideas? Thanks a lot!