I need a little info. I have switched my wifes 05 se eg sheet metal to 08 the only issue is the tank, I have the tank and seat modified to fit no big deal there. I did order the new wiring harness for the tank. There are 3 wires in the 05 plug and 4 in the o8 plug can anyone tell&nbsp\\; me what the extra wire is for and what it controls. I have had to change all the internal parts of fuel tank. now down to this little issue

 

Maybe the cruise control indicator?&nbsp\\;\\\\\\;\\\\\\\\\\\\\\;\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\;I'm sure the 05 had it too.

 

TBW?

 

Fuel mileage counter to empty?

 

My service manual shows 4 wires
A Yellow
B orange/gray
C black/green
D black

b and d to fuel pump
a and c to fuel float level indicator

 

Make sure to post pics of the finished product.&nbsp\\; Your the first I have heard of making this swap to 6 gallon