Took my 98 540 to the shop to help find a electrical problem and am having no luck. They shop charged me $180 and couldn't tell me what the problem was. They suggested I either let them continue or take it to BMW. Its been a progressively worse problem. First I would intermitantly lose radio function and indicators. I soon figured out that when I opened the vanity light it would cause the radio to come back on. That temp. fix stopped working too, and in addition now the brake lights stay on, the traction control doesn't operate, cruise control is non-functional, as well as the onboard computer system. Now, it seems to intermitantly come on (all systems), but it has gotten progressively worse. All the fuses are okay as are the relays (per mechanic) so I'm very frustrated. Has anyone out there ever heard of anything like this or have any suggestions? Thank you for any help or guidance.