Im install a backup camera in my 2007 jeep grand cherokee which has a avic f900bt installed. I dont have the original reverse wire. I notice my manual got a resistor or a fuse built in this wire. Two questions do i need this and if so whats the rating of it if so. any help would be great THANKS

if you are using a CHYAH05 or CHYAH08 or C2R-CHY4 Premium Radio Replacement wiring harness for aftermarket radios ....it will have a "reverse" wire that you can connect to the f900b's reverse wire.

thanks i forgot to check the chto-013 i installed last year i just hooked up the wires i guess i dont need to know that fuses rating