Found a rat in my runner!

Hey guys, new member to the forum, but been a lurker for quite awhile. So I recently found a rat making its home in my 1997 4runner, caught the little bastard, but I believe he got to some wiring first. The morning I found him my gas gauge spiked to past full, and the tach didnt work, then while driving, the speedo bounced around a bit before giving out as well, but the temp gauge worked. Anyone know if those three gauges share a ground? I really dont want to rip into the dash if I can avoid it. I looked under the dash and behind the glove box, all wires were intact, any help with a starting point would be greatly appreciated.

 

no clue but that sucks. sorry