[shorod]

I believe the module near the radio you are referring to is the flex fuel sensor module. There is also an anti-slosh module in the instrument cluster that could be causing the issue.

If you'd like to send me a private message with your request and an e-mail address for you that can accept PDF attachments, I can send you the PDF of the flex fuel sensor module connector (C2040) so you can compare the input from the fuel level sender (pin 3) with the output to the anti-slosh module (pin 6) which feeds the fuel guage.

-Rod