I have 2003 xkr that has been sitting for a while due to a parasitic drain. I start the car about once every 3 to 6 months. Today I decided to find this drain to get this car going again. I connected the battery and the rear signal and tail lights are remaining on. I was going to start by replacing the grounding strap. Any suggestions on the rear lights pulling relay 3 in the trunk of course turns the lights off.