electrical problem

[blky2kz]

So last night while i was out cruising, my volt guage starts jumping around going crazy. While its doing that, my lights get dim. As I am driving it home the guage goes down into the red and stays there. Now i just had a new battery installed the other week. So, i replace the alternator. That doesnt fix the problem. I am not too familiar with the electronics, so i dont know what to do next. Anyone have any ideas? Thanx.

[sunsetorangess]

check your battery terminals and make sure there tight and clean then recheck your connections on ur alt.
hook up a multimeter to your batter or alt and see what the voltage is
J