`00-`04 Outback Radio Antenna

Hello all,

One thing I have noticed since purchasing my `01 Outback is that because the
antenna is stuck to the left rear cargo window, reception of distant radio
stations is much poorer compared to my mom's `95 Legacy L which has the
metal antenna that slides down into the car frame and can be extended as one
wishes. For example I like listening to DC101 (100.1FM) out of Washington
DC when driving, being I am in the mountains 3 hours away it's expected that
reception is going to be spotty. However in my mom's Legacy I have little
problem getting nearly perfect reception of this station while driving in
most places here in the mountains. But when driving my `01 Outback, I
notice that places my mom gets great reception, I get very degraded
reception.

My question is, can I get some sort of external antenna to compliment the
current antenna that can be installed directly into the head unit/radio?

Bradley