First try taping the t to a t shaped stick and then moving it around until you find the best spot for most stations. If that's not satisfactory, try a rabbit ears or other indoor TV antenna and do the same. If that doesn't work, there are amplified antennas that can be mounted inside. I assumme that you are using the supplied transformer/adaptor between the 300 ohm T and the 75 ohm F connector on the receiver.
FM antenna made simple
I have a Rotel RX-975 receiver that cuts in and out when listening to local FM stations in Hartford. I am using the supplied "T" wire antenna simply taped to the wall behind the receiver. How can I improve my reception without getting too complex ? i.e without getting up on the roof or climbing the chimney to install a rotating antenna.