Where to get new radio antenna for a Jeep?

The antenna on my friend's '03 Jeep Wrangler was ruined by someone while parked on the street overnight. Is it possible to replace it locally, or will it be necessary to go to a dealership? Thanks for any help.

You might try Guadalajara's auto parts neighbourhood near the old bus station. Calle Los Angeles and that area. Be prepared to walk around and look for a few hours. Some of the parts appear to be stolen.
Francisco across from Maskaras Clinic may be willing to search for you. He has assisted me in finding parts.
Also Barajas Auto (Calle Los Angeles 442, tel. 650-3734) buys parts in USA regularly and brings them down in his own truck.

Thanks. We did get a lead on a place here in Chapala, and she got a new antenna.