Hi, newbie here. New with HP Tuners, tuning in general. I have a 2007 GMC denali and installed a Magnuson Supercharger. Re-hooked up the battery which was the last step. Ran into a problem trying to upload the supercharger tune to my truck because I did not have the latest Beta version of HP Tuners. Finally got the latest Beta loaded on my laptop the next day and tried to load the tune to my truck but the battery was nearly dead. I had nothing on in the truck, key was out, doors closed, etc.
I measured the current draw and it showed about 2.5 amps which is about 50 times more than should be.
I disconnected all connections involving the supercharger and still wants to draw 2.5 amps.

Any ideas?

Thanks a lot,
John