interesting story...
so i went to get an amp and speakers installed in my 85 300D the other day. i waited at the place while they worked on my car...after a few hours, an employee came in and informed me that they needed to keep my car overnight. why? because they had punctured my gas tank with a screw, and my full tank of gas was spilling all over the parking lot. they paid for a used gas tank, covered the cost of the install, and gave me a sweet deal on a new amp. they also re-wired my car and bypassed that scratchy fader, so now all four of the speaker outs on my head unit are actually hooked up

they steam cleaned my trunk, however i have my suspicions about the gas tank still leaking. the trunk seal needs to be replaced (water gets inside the trunk), and it just rained, but the liquid inside the trunk smells like diesel fuel. it could be that the trunk just still smells like that from an entire tank spilling out into it, but i thought the steam cleaning would have taken care of that. i'm not sure if the liquid is the source of the smell. the inside of my car also smelled like diesel for a while. should a steam-cleaning have rid my trunk of that smell, or do you think my gas tank is leaking?