I have the same yr and had the same problem. Id park go inside a store come out and car would click 1s then nothing. After much reserch i replaced the integrated power supply and ive had a year of no worrys!
04 745Li on 22" Asanti af-128 Eibach Springs
08 Lincoln Navigator Elite
Last edited by 745on22s; 10-25-2012 at 08:01 AM.