Posted 17 August 2004 - 01:30 AM
Well, I'm not sure if I can help much, but here's some information on wireless headsets. There are two kinds of wireless headphones, radio frequency (RF) and infrared (IR). I have no way of knowing which kind you have, but it can make a difference in the way you use them.
RF headphones are designed to pick up a radio signal that your car is broadcasting. If you have a tuning wheel on your headphones, they are probably RF headphones. Use the tuning wheel to tune into the right "station". Because the broadcasting of this radio station can interfere with your factory AM/FM radio, cars with this system are usually also equiped with an "OFF" switch to keep the car from broadcasting when not needed. Look around for an ON/OFF switch with no label. The ON/OFF switch on my '04 LX470 was installed on the dash to the left of the steering wheel.
IR headphones are designed to pick up an infrared beamed signal. You should be looking on your car for an IR "eye", which may look like a small red light. With these headphones, they have to be located in a direct line from the IR "eye" or they will not receive the signal. Any item interfering in the direct line will mean no sound. A dirty "eye" will result in lost signal also. Systems with this type of headphone usually have the "eye" right on the headrest screen, so look there first.
I'm not an aftermarket installer, and the info above is just what I remember from chatting with my aftermarket DVD installer. I hope I remember it properly. Good luck getting your system to work. I sure wouldn't want to drive 2.5 hours for a fix either.