OEM navigation radio

Hello everyone I new to the sight. I just recently installed this navigation radio on my 06 access cab. Can somebody familiar with these radios specify what each connection port is for. I know the grey port next to antenna port is for the GPS wire as I have unit installed and functioning. Looking forward to interacting with first gen owners...thanks

 

The 135861-165 comes back as a 04-06 Lexus ES300/330....86120-33620
Curious how well it fit in your 2006, any modifications to make it fit ?

 

Holy shit! Ask and thou shall receive thanks!!!......no it went in no problem except for a little trimming on the mounting brackets. Had to trim about a 1/16 off the front of both to get the detent and screw holes to line up. Other that that it perfect fit...didn't know mine came out of a Lexus got it from a buddy of mine who had it in his 06 limited

 

The TOYO part # helps and very well could have come out of your friends 06. The 86120-34020 does show its for an 05 or 06 Tundra at McGeorge