in mumbai you can get the Mechanism spares of Car Audio at Paras electronics,they have the rarest spares available,i am sure they can help in getting the mechanism,but again the issue,is it worth to change the spares,if its close to a few thousands on buying a new CD-Changer
I work in town area,I will try to find out the spares for the model number you have given..cheers...!!!!
Ramie