Dan, I had line-x sprayed in my '92 amigo, but unlike my '94 it has a heavy vinyl mat which went back on after the line-x was sprayed. Although the line-x is kind of pricey, i like it better than the do it yourself stuff. Benefits include a significant sound and heat reduction.Gonna do the same in my '94, and hopefully will be able to get the vinyl mat at the wrecking yard from an earlier model amigo.