Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Great Antenna...Too bad Terk no longer sells it

This antenna works very well, is easy to mount, and is very stealthy when installed in that it is hard to see from the gound. I went to purchase the matching amplifier but could not find specications for it on the Terk web site. However, the antenna worked so well that I did not need it. It appears that all of the XM/Sirrius antennas are no longer sold by Terk (Audiovox). What a shame.