Go to a photo store (a real one, not a picture counter at Walgreens) and get a simple polarized filer. Tape it in position over the lens. If it is too dark on the first try, rotate the filter 90 degrees.
Formerly posting as "littleblackdog"
Martha, Allen, & Blackjack
2006 Chevy 3500 D/A LB SRW, RVND 7710
Previously: 2008 Titanium 30E35SA. Currently no trailer due to age & mobility problems. Very sad!
"Real Jeeps have round headlights"