Battery drain/dead problem
So I've been having this problem to where if I leave my truck for about 3 weeks, it is always completely dead when I return. Thought it was due to a bad connection with the battery terminal. But, I have since got that fixed and I just returned from three weeks away, and truck is completely dead. I'm guessing I have something constantly draining the battery while I'm away, but no idea what. Only two electric things I've done are a PHP tuner, and installed electric seats (lightning seats).
Anyone else experienced a similar problem with there things? My battery is an optima red top if that makes any difference.