The XM Radio Skydock for the iPhone is now available for a purchase price of $120.  The dock allows you to insert your iPhone and obtain the XM’s satellite signal via a magnetic antenna that must be mounted on the roof of your car and snaked through to connect to the dock.

Once docked, in addition to being charged, your iPhone gives way to touch controls and a built in FM transmitter for getting the radio’s audio over your car’s stereo.

You’ll also need the special version of the free XM Radio iPhone application from the App Store, and of course a subscription to the service.

The Skydock is available at various online retailers and in brick and mortar stores such as Best Buy, Radio Shack and Apple.

Via Engadget.

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