My 17-year-old son's 'new' '99 Subaru Legacy (poor man's 4kq?) has a small chip in the windshield. Any BTDT's as far as filling that in? Looking for something that we could use this time of the year (i.e., it would work while it's cold out). Thx, Dan D '04 A4 1.8Tq MT-6 Central NJ USA