Cheap Rearview screen/XM Sat receiver?

I have a 2009 SR-5 with the rear camera in the tailgate (but no rear veiw mirror with the display) and the XM radio tuner and antenna (but no receiver)

Does anyone know of a source (ebay? after market?) where to buy the rear view mirror with the display or the XM receiver that is cheaper than going to the dealer? These would be nice options to have! Its frustrating that Toyota gives you 1/2 of the option, but you need to buy extra components to make them work!!!??? Its like selling you a truck with power window buttons, but without the electric motors to roll them up or down!!! Any ideas?

 

There was just a post about this in the Audio forum. Listed the sat radio adapter and everything.

 

Go to Ebay and search for a Gentex mirror. This will work with your Taco. I got the one couple months ago and it works like a charm.

 

Ebay? Ya good idea! Thanks for the reply!