Audio Systems: XM Cassette Adaptor ejects after 45 minutes, hyundai santa fe, xm sportscaster

Question
I just installed the XM Sportscaster in my 2003 Hyundai Santa Fe which has the original Monsoon radio with cassette player. After 45 minutes, the cassette adaptor for the XM ejects and will not stay in the deck until the next time I start the car (but it has to sit for several hours or it will begin ejecting again). XM says this is a problem with the cassette player. Any ideas?

Answer
it is not a problem that how the radio is
the radio was made to play TAPES ONLY tapes are 22 minutes per side a total of 45 minutes  
there is also 1 hour tapes  the delaer telss customer that if the use the 90 or 180 minutes tape they will void your warranty  and this true  
that is the reason why your tape ejects the plastic case you are using
there is nothing you can sorry