Best A2DP device with RCA output

I have audio input capability using RCA in my car. I am looking for the best device to receive bluetooth music (A2DP) from my BB and output using RCA to listen through my car speakers wirelessly.

I have come across one from Nokia at $100, a bit pricey, and I think the DC600 for about $50 from Motorola but I'm not sure if it'll do what I'm looking for.

What is the best budget-friendly option for me? I'm looking for some advice from the Bluetooth Gurus here, help me out please! :-)

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