I need a headlight relay for my 2003 9-3 Convertible in order to pass inspection. Dealer wants $180.00 for it, but I have seen it as an aftermarket part for less than $30.00. The dealer relay is orange, the aftermarket is grey. How do I know the aftermarket will work in my car? And how can I try it and not blow up other stuff? Anybody else ever bought an aftermarket headlight relay?