I've been trying to find the same answer. I called the dealer. the parts guy did not have listing for the XM module and antenna in his 06 4Runner parts. He called Toyota and was told that the components are being manufactured and will be available in March 06.
2006 XM
I just finished a discussion with my dealer's parts guy. The factory XM components refered to in the 06 Owners Manual were not in his list for 4Runners. He called Toyota and got the response that the components would be available in March 06.
