Yeah I have. They sound ok. Since you got 'em for free, keep 'em. Stick them in a sealed box and run some decent power through them. They probably won't blow you away for sound quality, but they'll get pretty loud.
2000 Contour SE 2.5L ATX - Toreador Red
2001 VW Golf GLS 2.0L MTX - Tornado Red
Buy my possessed VCR!!