Repair of Infinity IRS Beta

Help, I have a pair of Infinity IRS Beta's. My son took a packet of soy sauce and squirted it on one of the tweeter/mid panels. The soy sauce ate thru the conductive element of one of the LEMIM mid bass speakers. This planer speaker is 9 1/2" x 17 1/2" x 1 1/4". Does anyone know where I can get a replacement for this speaker or just the mylar element or anyone who can fix it? I need one speaker element replaced for sure and another one may go out soon. Does anyone know of a broken set of IRS Beta's that I could buy for the parts?