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ya, thats exactly why I don't want IR... IR can be blocked and that means I have to mount a visible IR transmitter and receiver... or mount them someplace inline not too close and not too far behind the dash or something.
The phidget or vellemen I speak of are usb interface modules... the phidgets are alittle more costly around 100, and the velemen if you want to solder it up is 40 something or 60 something allready assembled. The biggest reason I would want to go with the I/O over infrared is that not only can I use 1 input of like 2 or 16 depending on the rig you get... you can use the other inputs and other outputs to do other things. Ultimately I can control the brightness of my backlight upgrade, my power antenna, open door warning, any other warning you can hook to a light on... steering wheel controls (maybe) hvac if I got creative, windows, alarm, trunk, sub turn on off....... endless posibilitys for less then the ir receiver and transmitter which I have heard nothing but trouble for.
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