I found this Alpine AV input/output code while organizing parts. Unfortunately, I don't know the compatible models. The navigation side connector is 24P (see the second photo). Terminal contents: front/rear OUT (RCA type) AUX INPUT (RCA type) CENTER/SUB W. OUT (RCA) MIC IN (3.5mm) STEERING REMOTE (3.5mm) REMOTE IN/OUT (gibo-shi) MONITOR cont. (gibo-shi) That's all. Since there are subwoofer output/center output, is it a relatively high-end navigation system with a 5.1ch decoder? Also, since it has a 3.5mm steering remote input from Alpine, I think it's a fairly old model... The condition has scratches/dirt, but there are no deep scratches that expose the coating. Anyone know anything about it? 250717