Like many of my fellow San Andreas fans, I know the map like the back of my hand. This, still, doesn't prevent me from occasionally looking at the radar for directions during a mission, or because I tried to take a shortcut that ended with me crashing into a small unbreakable barrier and having to return to a normal road (this happens a lot in Las Venturas).
Simply put, the radar can be quite misleading. Look at the first picture below for a basic spot in Los Santos where a bridge needs to be marked but isn't (I'm sure this has gotten you confused when you needed to take it to get to the docks during the "Robbing Uncle Sam" mission).
Not only that, but both radars, PC (128px) & mobile (256px), are pretty low res. So I tried finding a better one, and came across this on GTAGarage, by yojo2- HQ San Andreas Radar (512px).
Now, feel free to get this, it's a fine radar, but I found it to be even more inaccurate than the original one. This is thanks to the author's method of recreating it, which most likely any of you can do by simply inputting a bitmap image into a vector program like Inkscape, and having that program automatically convert it for you a few times, one time for every color or so. I'm probably making it sound slightly easier than it is, I'm sure the author also played around in Photoshop as well.
Now, all these inaccuracies like tons of missing buildings, no shortcuts, flat out wrong information and the resolution of the radar, have lead me to try to re-create it, fully corresponding with the aesthetic of the original one, but with the problems mentioned above corrected. I am basically going pixel-by-pixel. I have 3 reference points, the original radar, the mobile radar, and the actual in-game map.
I have already put many hours into this (just by the nature of paying attention to every pixel), and will have to put in many more. I estimate only around 10% of the radar has been remade. I just wanted to get some input from you guys, if anyone's interested in getting a remastered radar that is FULLY FAITHFUL to the ORIGINAL AESTHETIC of the game.
Feel free to zoom in.
PS: I know the airport part isn't great, I'll probably change it at a later time.