Ok, now I'm getting somewhere. I was just sitting out in the Jeep going over the tuner kit processor board with my meter and accidently shorted pins 2 and 3 on IC 7, which is the CA3140 (CMOS Op amp). For a split second, everything functioned as it should. Of course I tried it again and got the same results. So now I'm looking at a .pdf schematic for the IC and can see that pins 2 and 3 are the inverting and non-inverting inputs (respectively) for the Op amp.

And now I'm pretty much in over my head as far as being able to deduce what is or isn't happening that's preventing the tuner from working the way it should. Is there a way that I can test the IC? Does anyone know what the signal is supposed to look like that is passed to those inputs and where it originates?

Rob- Thanks for the tips. I followed your instructions for the co-ax hook-up to the tee. What a help that was! I do believe that all the components were installed correctly; I was extremely meticulous about the whole thing. The whole time I was putting it together I was taking my time thinking to myself, "I'm only going to do this one time".

I hope that the others that were experiencing the same symptoms can find my clues useful.

I'll get this working yet!

-Randy