Looking for some help/opinions... Installed a Sony DSX-S200X receiver into my 2000 Lincoln LS a couple months ago. Along with receiver I purchased a steering wheel radio control adapter and all the Sirius components. Everything was working fine for about a month then mysteriously my car would not start. Battery tested good. Alternator was good. I'm assuming something from my new setup is drawing on the battery. Crutchfield tech support was unable to point me in the right direction. 12v constant wires should obviously not be drawing a battery down. I'm not exactly an electrical whiz but know enough basics. Anyone have any ideas? Help would be much appreciated! Thanks.