Battery Drain?

[Purplecty]

Originally Posted by 80stech

The best way to test the battery is with a load tester. The best way to check for a drain is to do a drain test with multimeter and battery switch(optional but makes things easier and results more reliable.) Even if the drain turns out to be acceptable you'll have good knowledge and a base line for next time so no time wasted.

Now that it is fully charged I will take it by advanced auto and have them test it since I do not own a battery load tested. I do have an aftermarket head unit with navi that came with the car and noticed the MK3 navigation unit is still installed in the trunk along with a Dietz multimedia interface which I believe is no longer being used. I think this Dietz interface is to work with the original 16:9 unit? Anyone familiar with this interface?