This excerpt taken from the SIRI 8-K filed Nov 12, 2009.
Section 4. Investment Authority
All rights associated with assets of the Trust shall be exercised by Trustee or the person designated by Trustee, and shall in no event be exercisable by or rest with Executive. Trustee shall hold the assets of the Trust in cash or in such risk-free investment vehicle as Trustee shall select, including mutual funds for which affiliates of the Trustee act as investment advisor or investment manager, as set forth in Section 2(c) above.