It can be one of the two,first one is a 9006xs and the second one is a D1S,rate please if this was at all helpful,thank you
When you need to replace the headlight of 2005 Cadillac CTS, then it's important to measure the replacement size. As I also don't have the exact ideas about this but I would suggest you to try d1-s bulb because it is an automatic bulb which can use in all vehicles. If you want to know more about this bulb and know the perfect replacement size of 2005 Cadillac CTS, then just take a look at D1S. Here you will have to ask your question as a query, their experienced team members will answer your question and you will get the exact replacement size at no cost.
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