A rearview mirror assembly includes an electrochromic reflective element having a front glass substrate and a rear glass substrate having an electrochromic medium sandwiched therebetween. The reflective element includes (a) a transparent electrically conductive coating disposed at a second surface of a front glass substrate and (b) a mirror reflector disposed at a third surface of a rear glass substrate. A conductive trace is established on a fourth surface of the rear glass substrate. An electrical connector establishes electrical conductivity between the conductive trace and one of (i) the transparent electrically conductive coating disposed at the second surface of the front glass substrate and (ii) the mirror reflector disposed at the third surface of the rear glass substrate. The electrical connector connects to the conductive trace via a solderless connection.