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The fuel smell is probably something to do with the fuel cap. The aluminum tank and fill area can distort by hanging the fuel nozzle off of it, and then fuel can escape past the cap seal.
I don’t know why you rare getting radio interference with the Ipod cord. I’ve seen radio interference from aftermarket spark plug wires, aftermarket headlights, aftermarket turn signal and brake light mods, but never before with a good quality OEM Ipod cord into a perfectly stock and great condition bike. I could certainly have something to do with the way the bike was cared for in the past, such as sitting out in the rain and the wire harness deteriorating.