here's an idea for you, they make 12v plugged pieces that you plug a USB Flash drive with MP3's on it in the device and then it plays them, and it has an FM transmitter on most of them, maybe you could make another switch to switch between the audio jacks and this usb MP3 player mod and be able to use one USB drive to play MP3's Straight from your flash drive.
wouldn't be too hard to mod, the circuit boards for these devices are really small, and most of them even come with a remote, take it apart, find the routing on the board that sends the audio signal to the FM transmitter part of the device and solder 2 stereo wires into those lines then into your secondary switch, then you just need to detach the provided USB plug for the device, solder some wires for an extension of the USB plug or simply just use a small USB extension so that you can mount it on the face plate, and put all of these pieces where the tape deck part Was at, run power to the device from the internal power points in the head unit, and extend the IR sensor for the remote if it has one and WHALA!!!!
i modded one of these devices i'm talking about so that the power to it runs off of USB instead of 12v for the vehichle and put it next to my computer, and i have a split line for the speakers plugged into it so when i'm listening to music on the PC or watching a movie i can turn my onkio 7.1 surround sound system to one of the FM stations of my choosing and listen to my PC with excellent clarity
I'm interested in this mod as well seeing as I'm going to try to keep my intrepid looking stock as I fix her back up... Do you have any pictures showing exactly what needs to be soldered and where? I may steal this mod from you :P
Hmmm I guess I needa read the thread again (been a few months since I last read the whole thing) I may end up beating you to doing it if I can get the radio and teach myself to solder a little better.
Another question, do you know if you can change the colors of the display and buttons/light on it to blue (I think the display would be the hardest, and I know you could mod it in the 2nd gen OTIS thingy)
No idea about the display - I would think you'd have to find a display of the right color to begin with. The other colors on that radio are just plastic/rubber/silicone caps that slip over the bulbs.
I seem to remember there are two different display colors for that model of radio - but they are for different vehicles and the face plate doesn't have the right tabs. you have to be creative in changing the face plate, but it can be done.
Sounds good - I've had this on hold while looking into what I'm going to do for a head unit - for a while I was planning on installing some sort of NAV head unit - but the more I think about it, the less I want to. I need to service my head unit anyway, looking at a parts unit and will also post my progress.