2000 bmw 740il radio dead.
I recently bought a 2000 bmw 740il for CHEAP.. as a project. It starts right up.. runs ok ect.. Anyway
WHen I bought it. The CD CHANGER, and AMP were disconnected in the trunk and the Navigation screen and radio/ cassette were disconnected up front in dash..
WHen I connect the harness for the amp and I put the key in ignition position (1) I hear a LOUD humming noise from ALL speakers.
When I connect the harness for the radio in The small red light comes on, and cassette can be heard moving but blank navigation screen, no sound. nothing.
I checked all fuses and all are ok. Please help ..