Exhibit 10.3

JOINDER TO REGISTRATION AGREEMENT

     THIS JOINDER TO REGISTRATION AGREEMENT (this “Joinder”) is executed as of  
                     , 2004, by and among Commercial Vehicle Group, Inc., a
Delaware corporation (the “Company”), and the Persons listed on Schedule A
attached hereto (the “New Investors”).

     WHEREAS, the Company, Onex Corporation, J2R Partners VII and certain other
stockholders of the Company are party to that certain Registration Agreement,
dated as of October 5, 2000, as amended (the “Registration Agreement”).
Capitalized terms used but not defined herein have the meaning given to them in
the Registration Agreement.

     WHEREAS, the New Investors have acquired shares or rights to acquire shares
in the Company, in connection with, among other things, that certain Agreement
and Plan of Merger, dated even herewith, by and between the Company, Trim Merger
Co., and Trim Systems, Inc.

     WHEREAS, the Company desires to provide the New Investors rights under the
Registration Agreement as set forth herein.

     NOW, THEREFORE, the parties hereto agree as follows:

     1. Joinder. The parties hereto agree that, by and upon execution of this
Joinder, each New Investor shall be a party to the Registration Agreement, (ii)
shall be an “Investor” (as such term is defined in the Registration Agreement)
and (iii) shall be entitled to the rights and benefits and subject to the duties
and obligations of an Investor thereunder, as fully as if such New Investor had
been an original signatory thereto in such capacity.

     2. Continuing Effect. Other than as modified in accordance with the
foregoing provisions, the remaining terms of the Registration Agreement remain
in full force and effect.

     3. Counterparts. This Joinder may be executed in separate counterparts each
of which shall be an original and all of which taken together shall constitute
one and the same agreement.

     4. Governing Law. All questions concerning the construction, validity and
interpretation of this Joinder shall be governed by and construed in accordance
with the internal laws, and not the law of conflicts, of Delaware.

     5. Descriptive Headings. The descriptive headings of this Agreement are
inserted for convenience only and do not constitute a part of this Agreement.

* * * * *

 

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     IN WITNESS WHEREOF, this Joinder has been entered into as of the date first
above written.

              BOSTROM HOLDING, INC.
 
       

  By:                                                                           
   

  Name:                                                                         
     

  Its:                                                                         
     
 
            ONEX DHC LLC
 
       

  By:                                                                           
   

  Name:                                                                         
     

  Its:                                                                         
     
 
            TRIM SYSTEMS EXECUTIVE INVESTCO LLC
 
       

  By:                                                                           
   

  Name:                                                                         
     

  Its:                                                                         
     
 
            TRIM SYSTEMS EXECUTIVE INVESTCO II LLC
 
       

  By:                                                                           
   

  Name:                                                                         
     

  Its:                                                                         
     

 

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[Continuation of signature page to Joinder to Registration Agreement]

              ASC INCORPORATED
 
       

  By:                                                                           
   

  Name:                                                                         
     

  Its:                                                                         
     
 
            AMON CANADIAN INVESTMENTS, LTD.
 
       

  By:                                                                           
   

  Name:                                                                         
     

  Its:                                                                         
     
 
            MHON CANADIAN INVESTMENTS, LTD
 
       

  By:                                                                           
   

  Name:                                                                         
     

  Its:                                                                         
     
 
            J2R PARTNERS II
 
       

  By:                                                                           
   

  Name:                                                                         
     

  Its:                                                                         
     
 
           

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    Marni L. Johnson
 
           

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    Ronald A. Johnson
 
           

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    Robert R. Hibbs

 

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[Continuation of signature page to Joinder to Registration Agreement]

             

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    Eric L. Hupp
 
           

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    Michael Szczepanski
 
           

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    Cleve S. Blunt
 
           

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    Jim Lindsey
 
           

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    Frank Lolli
 
           

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    Greg Stepanek
 
           

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    Chad Utrup
 
           

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    Richard Steele
 
           

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    Robert C. Chastain
 
           

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    Robert Averitt
 
           

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    Mervin Dunn
 
           

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    Douglas P. Liehr
 
           

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    Kevin Richards
 
           

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    James Williams
 
           

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    Clint Arney
 
           

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    William G. Szuch

 

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Schedule A

ONEX DHC LLC
TRIM SYSTEMS EXECUTIVE INVESTCO LLC
TRIM SYSTEMS EXECUTIVE INVESTCO II LLC
AMON CANADIAN INVESTMENTS, LTD.
MHON CANADIAN INVESTMENTS, LTD
J2R PARTNERS II
ASC INCORPORATED
Marni L. Johnson
Ronald A. Johnson
Robert R. Hibbs
Eric L. Hupp
Michael Szczepanski
Cleve S. Blunt
Jim Lindsey
Frank Lolli
Greg Stepanek
Chad Utrup
Richard Steele
Robert C. Chastain
Robert Averitt
Mervin Dunn
Douglas P. Liehr
Kevin Richards
James Williams
Clint Arney
William G. Szuch