I'm tuning an 01 lb7. I have no aftermarket stereo. I had a single tune in it and it worked great. I installed a dsp5 switch and then put my set of dsp5 tunes on it and I'm not getting all 4 tunes. Every position on the switch has the same base tune but when I read the exam it reads as my dsp5 set of tunes. Any ideas or help?