As filed pursuant to Rule 424(b)(3)
                                                under the Securities Act of 1933
                                                      Registration No. 033-87864



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                      AIG SUNAMERICA LIFE ASSURANCE COMPANY

                            VARIABLE SEPARATE ACCOUNT
                SUPPLEMENT TO THE POLARIS PLATINUM II PROSPECTUS
                    (FORM NUMBERS: R-3456-PRO AND B-3483-PRO)
                             DATED DECEMBER 28, 2004

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The following replaces the INVESTMENT CHARGES section located in the prospectus:


INVESTMENT CHARGES

        INVESTMENT MANAGEMENT FEES

Charges are deducted from your Variable Portfolios for the advisory and other
expenses of the Variable Portfolios. The Fee Tables illustrate these charges and
expenses. For more detailed information on these investment charges, refer to
the accompanying prospectuses for the Trusts.

        12B-1 FEES

Shares of certain trusts may be subject to fees imposed under a distribution
and/or servicing plan adopted pursuant to Rule 12b-1 under the Investment
Company Act of 1940. The 0.25% fee applicable to Class II shares of Van Kampen
Life Investment Trust, Class 2 shares of the American Funds Insurance Series and
Class 3 shares of the Anchor Series Trust and SunAmerica Series Trust is
generally used to pay financial intermediaries for services provided over the
life of your contract.

For more detailed information on these Investment Charges, refer to the
prospectuses for the underlying portfolios.

Dated: December 30, 2004



                Please keep this Supplement with your Prospectus.



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