Tooshea, the movie you're looking for sounds like
"The Vindicator." Neither Tawny Kitaen or Peter Weller is in it, but Pam Grier is. Look under "External Reviews;" the one for "Painful Cinema" (hee) mentioned synthesizer-communication, so I'm pretty sure it's the one. (It's been too long, I don't even remember that element--just Pam Grier whacking people.)