Will this work with iphone 5 and tom tom car kit

I currently have the iphone 4 and tom tom car kit. I thought if I attached this Adapter to the iphone 5s and to the tom tom car kit I would get audio or would I be better to use the pro-cable charge cable at Macfixit with 30 pin connector at one end but both USB plug and 3.5mm audio jack at the other end?

Lightning to 30-pin Adapter (0.2m)

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