Hello !
Before i say anything i wanna say that i tryed to search around to find any info ,so maybe i could fix it myself ,but i m givig up ! ;/
I was installing RCA (PAC) in my 2008 SE v6 Camry (Navi ,JBL) to connect a amplifier (SUB) I "dry fitted " everything first (to make sure it works ) and it was fine ,i even had sound from Sub.Than after connecting all Wires
- Power Wire
-Remore wire (took it from 12v Charger tap in )
- RCA ,ho0ked them up from rear speakers ,and than connected RCA cables .
I had + wire Off the battery ,so when i connected everything back - My NAVI DOESENT WORK ANYMORE !!!! None of the Stereeng wheel controls Or Navi itself
It Has Message On Screen - NO DISCK<PLEASE INSERT A MAP DISCK
Only Button that works is OPEN /Close Button...

Please Help If any Had a same problem. !
TNX ! ! !

IT MAY SOUND SILLY BUT DID YOU RECONNECT ALL OF THE PLUGS IF I CAN SEE PIC OF RADIO I CAN HELP YOU TO GET IT RIGHT