Yesterday I found a forney for sale on Ebay(no I am not trying to sell my own thing ) currently at $43.00 . It has the factory installed sound and I think the only reason it is so cheap is because the vent on top of the cab broke off but that would be an easy fix. Anyway if any-one is instered it is item number 160244260440. :)
The auction started low (as many do), but this unit will sell for around $200 I'm going to guess. I personally wouldn't trust buying from someone who lists it as "C-10 Mint Brand New", and then somewhere in the middle of his description discloses the broken part. Seems shifty to me. :-\
Mark