NEED ADDRESSES AND PHONE NUMBERS FOR THE FOLLOWING TWO BUSINESSES

COBY (MANUFACTURER AND SELLER OF RADIOS (ELECTRONICS)

CURTIS (NOT CURTIS MATHES) MANUFACTURER AND SELLER OF STEREOS (ELECTRONICS)

Hi ddpromo,
Here are the addresses and phone numbers that you requested:

Coby:
Coby Electronics Corp
56-65 Rust street
Maspeth, NY 11378
USA 
Phone:718-416-3300
Fax: 718-416-3305
E-mail:customerservice@cobyusa.com
http://www.cobyusa.com

Curtis Technology:
129 S.Phelps Avenue,
Suite 526
Rockford, IL 61108
Contact: Bill Curtis
Phone: 815.399.8453
Fax: 815.399.2559
Email: sales@curtis-technology.com
http://www.curtis-technology.com

I hope that is the answer you are looking for.  If you need
clarification, please request for it before rating this answer.
secret901-ga

Search strategy:
Coby Electronics
Curtis stereo -mathes

Actually, I believe that the Curtis Tech in Illinois is NOT the Curtis
that makes Stereos.

I think you're looking for the following: 
 
Curtis Stereo is: 
 
Curtis International Ltd 
315 Attwell Dr. 
Etobicoke Ontario Canada M9W 5C1 
 
Phone: 416-674-2123 
Fax: 416-674-2135 
 
(If you're not dialing from Canada, you may need to dial the country
code first.)
 
Confirm this at: http://www.hoovers.com/co/capsule/6/0,2163,57306,00.html