Been working this one for quite some time now. Driving us a bit nuts here. It's 63 e-model. The fail is intermittent every couple seconds or so. We can receive, but it wont tune. All major parts have been changed. Trying to shoot wires, but as usual, the wiring diagrams haven't been very reliable. Just wondering if anyone has seen this before or could possibly shed some light on something we haven't yet looked at.