Greetings All!
Was wondering if anyone in the group was able to use these jacks at the same time on their vehicle without getting lots of background "hiss" in the playback.
Trying to power my portable XM receiver with any 12 volt jack while using the aux jack for output through the factory speakers produces a very noticeable "hiss" or "whine" that rises and falls in direct relation to the rise and fall of the engine RPM.
No problem at all if I use the XM receiver on battery or use the FM transmitter for output.
Thanks in advance for your thoughts.
-Barry