My 05 has been parked for a few weeks and now is dead to the world. Nothing lights up, won't unlock from fob. Ignition won't turn with key inserted. I've done the following:

• replaced fob battery
• Main battery is a month old and has full power
• All under hood fuses checked. They are getting power.
• Most inside fuses checked.

I'm trying to sell it so would really appreciate any tips. Thank you.