Bought Dodge Dakota V6 3.7L , Automatic truck used - battery drained after standing 1 1/2 days. Checked everything, pulled all fuses and relays in fuse panel. Nothing . Discovered ground cable leading to starter. Starter was "grounded out".
Installed new starter, still measuring 3.6amp DC. Disconnected heavy red wire connecting fuse box.- ZERO amp DC. What else can cause such high draw?

 

3.6 amps is a good draw.

Start pulling fuses to see if you can narrow it down.

 

Unplug the CTM in the driver kick panel.

Unplug the audio amplifier (if present) in the passenger kick panel.