It's acting almost as if circuit 15 and circuit 30 are shorting, but I can't find any damaged wiring. Is it possible that the factory alarm module could be shorting them? It does connect to both circuit 15 and 30 and it is intermittent. Maybe I'll unplug my alarm module.

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1998 E320 Wagon

1992 300D 2.5 TURBO

1991 560SEL M119.960

1986 300SDL TURBO

1992 500SL Parts Car

1991 420SEL Parts Car