1977 Eldorado, this should be simple, could someone please tell me where the negative battery cable attaches. I think to the engine, but exactly where? Thanks. I just bought a 1977 Eldo with 26K on it, neglected, and some of the problems are, GEN light on, faint radio, and, doesn't rev up when you hit the gas. The battery is grounded with a six inch wire to the top of the radiator support. I think if grounded properly my problems are over. Or just beginning... I changed the oil, air cleaner, and topped up the anti-freeze. I didn't even drive the car yet. Can't wait.