CD Rom drive/laser assembly for Cary Audio??

Hi. I need to replace the CD-Rom/laser assembly on my Cary Audio 303/300 CD player. I know its a Matsushita unit, but I'm not sure the model number or where I might find one (other than Cary). I do have technical training so it's likely a DIY if I can find the parts. Thanks!!
Call Cary for the model number. They are very helpful.
Don't know if this helps. I have a Cary 300 cdp. The small plastic lens cap came off the laser assembly. I brought my player to Cary and they reattached the lens cap. Cary told me it was great I had saved the lens cap due to problems finding new ones. The Cary 300 has the pioneer (upside down cd) drive unit.