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First - thanks to the mysterious Jerry! Yeah, if you use a JPEG, the colors are off. This is the issue I noticed when loading the XM PIM files into Irfanview. There is some sort of offset, or different color space going on, I don't know. So yeah, you can make some reasonable backgrounds using simpler color schemes. But photos look wrong. I will continue to try to figure that out. Jason - wasn't the boot screen just a JPEG, not a PIM? Derek

ok - I thought so. It is simply a matter of fixing the RGB bits when saving the PIM image. He has 5:6:5 (which is why the AVIC color is off) and we need 5:5:6. Thanks for testing! Contact Jerry! Derek

Wow - so close! Looks like this app is saving things as 5:6:5, not 5:5:6. Otherwise, if you load a JPEG into the app and save it as PIM, it works! I took a JPEG photo I had into photoshop, resized and cropped it to 500x240, and saved it as a JPEG at Maximum Quality 10. I then loaded the JPEG into Jerry's program and saved it as PIM. I renamed the PIM file to RAW temporarily, then I open the RAW file in Irfanview as a 5:6:5 and its perfect! We just need Jerry's program to save it as 5:5:6 and I think it will look correct on the AVIC. If that works, then we are good to go!

So many popular XM logos are missing on the AVIC. Jason pointed out that they are missing because XM changed the names of those channels. This occurs on any AVIC, any XM receiver, and both NAV disks 1.0 and 1.2. There is a file called TABLEDAT that has the XM channel names listed, and it maps them to the XM logo PIM files. For example, 'SquiZZ xL' is listed in this file. However, XM recently changed the xL channels to list xL first, so now the receiver gets 'xL SquiZZ'. This is not in the TABLEDAT file, so you end up with the stock satellite logo. Open TABLEDAT with a hex editor

Ah, the first post in the XM section. So if you have an AVIC and the XM Receiver, you'll notice that some XM logos do not appear. I found this irritating because its a nice feature and looks cool. This occurs on D1, N1, N2 with either DVD 1.0 or 1.2, and any XM receiver (Nav Traffic or original). The reason is, as Jason pointed out, that the AVIC reads the channel name that XM broadcasts and then matched that up in a table with a logo. However, XM recently changed the names of some channels (for example, SquiZZ xL is now xL SquiZZ). This simple change ruins the name mapping and t

If you look at the DVD for the D1, it is the same as the one for the N2. However, there are other directories for more background images that do not appear on the D1. If you copy the files from the 'hidden' directory to the one that the D1 sees, those PIM backgrounds are now available. However, there is a limit to the number or files that the D1 can read in the driectory, so you need to pick and choose. I think it can read 15 or something, I need to go count them later. The 'animated' ones work as well. I am not at my main PC, so I can't remember the directory names - will post l

Just tested this app - holds promise! However, looks like the PIM files are not loading in the proper 2-byte 5:5:6 format. Jerry - thanks for making the effort! Awesome! Let me know what format you are loading the PIMs in. Like I said, its 16-bit, 5:5:6. Can you do that? For Save too? Derek

Some more general info: The PIM files have 16 byte headers. They are 16-bit color, with each pixel represented by two bytes in a 5:5:6 bit RBG pattern. Jason was the first to discover that they can be opened as RAW files in Photoshop, but they come out as grayscale. Photoshop can't import 16-bit color RAW files. We have since figured out that Irfanview can read these files using the RAW input format in color because it allows many more import options. Either rename the PIM file to RAW, or select the option 'Open as RAW'. So the problem we have now is that although we can open them, w

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