Your second battery could be croaking, Loose wire on starter, bad pos connection, loose pos connection in the main fuse box. Loose ground.
As far as the air bag light, have you taken it in to get the air bag reprogrammed?
AFM Site Administrator2006 Tungsten Grey Mustang GT Manual. Alpine H/U with Infinity speakers. Powerhouse CAI and Tune.
1978 2.8 L, 1979 5.0, 1982 5.0 "HO", 1986 5.0 GT
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