2002 Cadillac Escalade Draw of 14 amps or milliamps

For several years off and on, my Escalade has been towing a covered trailer which would cause the vehicle to blow #10 fuses. Recently the vehicle would not start in my driveway after I had been towing the trailer. The previous evening some lights in the cluster panel on the dashboard had dimmed while I was driving. I had the car towed and it has been at the Cadillac dealer for two weeks. They say the vehicle has a draw of 14 when the draw should be.7 and I believe the issue was triggered by the trailer harness, which I had rewired a couple of years ago. The Cadillac people are trying to find out where the draw is and they think it is in the sound system. Everything on my vehicle is factory installed except the circuit breaker I used to replace the #10 fuse which was blowing after I hitched up the trailer. The Cadillac people put a new battery in the vehicle but it still won't start.