1 EXHIBIT 16.1 [COOPERS & LYBRAND L.L.P. LETTERHEAD] July 19, 1995 Mr. Rand W. Mueller President, Chief Executive Officer Code-Alarm, Inc. 950 E. Whitcomb Madison Heights, MI 48071 Dear Mr. Mueller: This is to confirm that the client-auditor relationship between Code-Alarm, Inc. (Commission File Number 016441) and Coopers & Lybrand L.L.P. has ceased. Very truly yours, Coopers & Lybrand L.L.P. cc: Office of the Chief Accountant SECPS Letter File Securities and Exchange Commission Mail Stop 9-5 450 Fifth Street, N.W. Washington, D.C. 20549