2005 1.4L Chevrolet Lacetti, 227 K km (142 K miles), was going fine but airbag light came on, I think the clockspring wires are gone as the wheel audio switches stopped working at same time. Various diagnostic scanners don't pick up the airbag module so I possibly can't reset the fault if I get the clockspring fixed. Only other defect is a minor crack in the exhaust manifold that has gone past several NCT with some exhaust paste. I'm undecided about whether to spend money on a probably hard to fix electrical fault or call it a day and get something younger. Any thoughts?