If u dont mind of modification, or must using a brackets, any aftermarket/accessories shop antenna can be used to replace. Mind the antenna slot are universal, accessories shop antenna comes with few different hole-base to match ur car, also they have a universal bracket to fix inside (OEM antenna bracket maybe can be use back or not), usually cannot be use back because of different antenna body-mounting (OEM antenna is mounted to the OEM bracket and this bracket was installed into inside car panel). Also mind the wiring will be not the same as OEM. u have to figure it out, which wires goes to which (accessories antenna got no socket or will not same as OEM socket wiring).
usually wiring are;
1. power 12v+
2. Ground
3. Acc 12v+
4. remote input.

the easiest way is, find 2nd hand, used or halfcut condition, OEM antenna to replace the broken antenna (the exact antenna model for replacement)..its just PnP.

actually its not that hard as what u heard..
we are not doing rocket sience..haha
just go the the acc shop, ask them to install the antenna..easy meh