Thanks you guys.
@RogueOne I have read some documents of FSM but I have not been able to find a hole/grommet for doing this.
@sonudel, thanks. The trim level of my Xtrail does not include the front camera, It just includes the rear camera. Acording to the FSM, XTrail (I could find this manuals -spanish) and US Nissan Rogue 2nd Gen are almost the same. There are some minor differences on color cables and harnesses.
I will install a front camera with an electronic circuit for 15 seg delay (after the reserve signal has been change off), I will be using an aftermarket radio (Pioneer AVH-X2750BT). Once I success I will share some photos.
Meanwhile, for all of those that want to run a cable through firewall, this thread could be useful (not so much details but could help)
2014-nissan-rogue-adding-subwoofer-ampl ... l#p6637583
Regards
Sorry for my English