Exhibit 10(a)
 
                              Second Amendment to
                            the 1994 Restatement of
                       Aon Employee Stock Ownership Plan
                       ---------------------------------


     Whereas, the Aon Employee Stock Ownership Plan (the "Plan") is currently
set out in the 1994 Restatement of the Aon Employee Stock Ownership Plan, which
was generally effective as of January 1, 1994 (the "Restatement").

     Whereas, the Board of Directors of Aon Corporation desires to amend the
Plan pursuant to the Board's authority to do so under Section 12.01 of the Plan
and pursuant to the terms of the contemplated sales of the common stock of Ryan
Dealer Group, Inc., and other assets to Resource Financial Corporation.

     Now, therefore, the Plan, as set out in the Restatement is amended as
follows, effective as of January 1, 1996, or as otherwise specified:


     Section 4.02  A new subsection (g) of Section 4.02 shall be added to
read as follows:

          (g)   For the Plan Year beginning January 1, 1996,  there shall be
                posted to the Stock Sub-Accounts of each RDG Participant
                (defined herein) his share of Employer Securities contributed,
                acquired or released under Sections 3.01 and 3.03 and
                forfeitures from the Stock Sub-Accounts.  The RDG Participant's
                share shall be posted if the RDG Participant earned 1,000 Hours
                of Service (including annualized service) and without regard to
                whether the RDG Participant was employed on the last day of the
                Plan Year.   Amounts credited to the Stock Sub-Accounts of all
                Participants, including RDG Participants, shall be determined as
                set forth in subsection (a), except that Compensation for RDG
                Participants shall be only that portion of Compensation earned
                from January 1, 1996, through the Closing Date (defined herein).

                (i)  An RDG Participant is a Participant who is listed on
                     Schedule 6(a) of the Asset Purchase Agreement between Aon
                     Corporation and Resource Financial Corporation (attached as
                     Exhibit A).


                (ii) The Closing Date shall mean the date of the sale and
                     purchase of the common stock of Ryan Dealer Group, Inc.

                                      19

 
     Section 4.06  Paragraph (ii) of subsection (d) of Section 4.06 shall be
deleted in its entirety and the following substituted in its place:

          (ii)  For dividends on unallocated Employer Securities in the suspense
                account, the released shares shall be allocated to the Stock
                Sub-Accounts of Participants pursuant to their relative
                Compensation in the same manner as under subsections (a) and,
                for the Plan Year beginning January 1, 1996, subsections (f) and
                (g), of Section 4.02.

     Section 4.06.  A new subparagraph (B) shall be added to paragraph (v) of
subsection (d) of Section 4.06:

          (B)   For purposes of this subparagraph (v), an RDG Participant, as
                defined in Section 4.02(g), shall be deemed to be employed by
                the Company on December 31, 1996.

     Section 9.02.  A new subsection (h) of section 9.02 shall be added to
read as follows:

          (h)   Participants who are listed on Schedule 6(a) of the Asset
                Purchase Agreement ("RDG Participants") between Aon Corporation
                and Resource Financial Corporation (attached as Exhibit A) shall
                be 100% vested on the date of the sale and purchase of the
                common stock of Ryan Dealer Group, Inc.

                                      20

 
     IN WITNESS WHEREOF, Aon Corporation hereby adopts this Second
     Amendment to the 1994 Restatement of Aon Savings Plan, effective as set
     forth above, as of this 1st day of August, 1996.


                                            Aon CORPORATION

                                            By: /s/ Daniel T. Cox
                                               ---------------------------
                                               Daniel T. Cox
                                               Executive Vice President


                                      21