weak radio signal. where do i begin to search for the cause? short somewhere?
949
Senior Wagonist
i have been getting weak signal for a while and have thought it to be a bad head unit.
i just replaced it with a brand new head unit and it still has a weak signal.
symptoms and effects.
when the engine is off and the key in the ACC position, i get perfect signal and clear sounds.
when either of these are turned on i lose the signal;
key in the ON position ( the engine is off or on doesnt matter).
pressing on the brakes. (brake lights will come on).
parking light is turned on. ( no difference if head lights are on or off).
what i have done so far and nothing has changed:
i tried redoing the grounds.
i did the big three upgrade 1/0 gauge.
i replaced ignition switch with brand new OEM part.
fixed broken T-tap wires under the dash. (all the ones i could find) removed and soldered them back together.
i assume there is a short somewhere or a drain but only when i turn the key or use any of the accessories like light will the drain be more apparent.
how do i start to search for the problem?
i just replaced it with a brand new head unit and it still has a weak signal.
symptoms and effects.
when the engine is off and the key in the ACC position, i get perfect signal and clear sounds.
when either of these are turned on i lose the signal;
key in the ON position ( the engine is off or on doesnt matter).
pressing on the brakes. (brake lights will come on).
parking light is turned on. ( no difference if head lights are on or off).
what i have done so far and nothing has changed:
i tried redoing the grounds.
i did the big three upgrade 1/0 gauge.
i replaced ignition switch with brand new OEM part.
fixed broken T-tap wires under the dash. (all the ones i could find) removed and soldered them back together.
i assume there is a short somewhere or a drain but only when i turn the key or use any of the accessories like light will the drain be more apparent.
how do i start to search for the problem?