grankin
New member
- Location
- Madison, WI
I finally got tired of using the aged iPod in the iPod dock, for it fails to understand 'shuffle' when hooked up that way. So I got me a long cable with audio plugs at each end and a plug for the 12V 'cigar lighter' with a 5V USB connection. Now I can use the iPhone 4S as the sound source through the 'aux' input, see what's being played on its screen (it grasps 'shuffle' very nicely), and keep it charged.
Here's the problem: it 'sees' ignition noise (rises with revs) through the 12V socket (not through the 'aux' input). Not loudly, but enough to be annoying in quiet sections of tunes.
Here's what's odd: I have a 20-year-old Porsche, where I hook the phone up the same way. NO ignition noise. None.
I figure a low-pass R-C filter (allowing only DC through) will clean it up, but executing that notion is outside my expertise. Anybody have a good idea?
Here's the problem: it 'sees' ignition noise (rises with revs) through the 12V socket (not through the 'aux' input). Not loudly, but enough to be annoying in quiet sections of tunes.
Here's what's odd: I have a 20-year-old Porsche, where I hook the phone up the same way. NO ignition noise. None.
I figure a low-pass R-C filter (allowing only DC through) will clean it up, but executing that notion is outside my expertise. Anybody have a good idea?