can i bypass the ammeter.

You can go about it by going through the more thorough Mad Electric method, or you could do it the quick way, which would be to run a 10-12 gauge wire from the alt charge post to the positive connector on the battery. This is not as effective, but it does work in reducing the amount of voltage that is passing through the ammeter, thus greatly reducing the risk of a wiring failure or ammeter meltdown. The ammeter will read lower, as less power from the alt is passing through the wires that pass through the bulkhead connector and the ammeter. You may want to add a voltmeter to display accurate readings.

-Justin