This radio is am original Sportster, I am using it my truck with a car kit. Last night it stopped working properly. I get a full SAT signal but I get no TER signal and I get mostly no audio anymore. Every now and then I will hear some audio then it will start to cut in and out, but mostly I get nothing. and it keeps saying acquiring signal where I know I get a full signal all the time. I have tried another antenna and I get the same thing.

Any ideas ?