Circuit for fuse # 74?

[X5SND]

Hey guys, the X was dead this morning. It appears that something is causing the circuit of fuse #74 to remain powered up. Since my headunit is connected via factory harness, and my air suspension module gets its keyed power signal from the purple/white accessory wire under the center console-----and both only turn off when fuse 74 is yanked---- my question is there any relays or modules that are associated with this circuit/fuse?

I did some digging and found a couple threads about bad "radio modules" but it was unclear as to what they were referencing as some were referencing the location of the amp, and others modules under the battery tray cover. I checked the rear compartments for any water/corroded connectors. Everything checks out visually, leading me to believe its gotta be a bad module or stuck relay somewhere.....any help is appreciated!