I have a panasonic dvd home theater sound system SA-HT930, and the dvd player, is broke can do nothing with it, need a new one but the plug between the ampli and the dvd wont fit on any new dvd theater home system and I wanna know if a adapter for this exist?

Believe it or not there is a seller on eBay who offers a one-price fixit solution for your unit for $100.

http://cgi.ebay.com/Panasonic-SA-HT930-SA-HT940-Repair-Service-/360178573162?pt=LH_DefaultDomain_0&hash=item53dc50df6a

That aside, these types of systems are designed as a package to be used as a unit. Otherwise they might have standard connectors. Another closely-related Panasonic SA-HT system might work for you but I doubt anyone manufactures anyhting to adapt non-standard speakers to standard electronics.

They actually say on page 9 of the manual:

"Use only supplied speakers
Using other speakers can damage the unit, and sound quality will
be negatively affected.

I would interpret that to mean 'use these speakers only with similar Panasonic electronics'.