The infamous SVT shutter! Upgrade your electrical connections. From what I understand, that is a cheap way to fix that problem. Give me a couple minutes, I will look up the how to.
Found it!
http://www.focuscanada.net/forum/index.php?showtopic=8122
You dont need all the things listed on this page. All you need is the wire, the connections, couple sockets, and pliers to close/crimp the ends. Thats all I used. Go to your nearest stereo place, they got the right sized wire and connections you need.
Good luck!