I checked behind driver and passenger seats( no compartments found). I generally followed a toggle for radio, house, engine battery - wiring went into engine compartment to some kind of 3x3 box. I followed 2 leads from positive battery terminal - one looked like it was headed for solinoI’d/ starter the other lead went to the other side of the engine compartment and maybe down near the 3x3 box I found earlier. I double checked compartment in door step - there was no evidence of a battery being there and no access holes for cables(compartment too small any way). Everything works fine (battery has stamp 4/22). I took a flash light and peered all though out the engine compartment (in case they mounted the house batteries somewhere there). The mystery continues.
