[nynick52]

Originally Posted by dieseljeep

If there's no model number on it, you'll have to use the chassis numbers, to get the service information.
Regarding the speakers, I wouldn't replace them. That 6X9, with the inverted magnet isn't all that common. Try to clean the corrosion off, using some kind of solvent. Try not to breath it, as it's somewhat poisonous.
Also, clean the hinge pins for the best contact.

Thanks. So that's corrosion, eh? I wondered what all that white powder was. There is none on the 4" speaker.