So ive tried to find an answer, but havent found a straight answer, im confused on the dimmer/illumination wires.. and from what ive read, if you connect these wrong you can really mess up some stuff. So i have a 2008 350z with bose, and i bought the metra harness kit (99-7602 i think) for it and it has a solid orange wire that says "illumination/dash lights". On the pioneer 4300 it has a orange/white wire that says "lighting switch terminal". Do i connect these two wires together? Thanks in advance for anyone who helps me

 

i honestly wouldn't hook up the dimmer... it doesn't work correctly ..
i hooked mine up .. and when u switch runing light to headlights on.. it changes the dimness.. and doesn't respond to the actual car dimmer...

so i got tired of it and cut it.. and just set the dimness to how i like on the actual deck setting.. just my 2 cents..

 

2008 Nissan 350Z Car Stereo Install Diagram

Car Radio Battery Constant 12v+ Wire: N/A
Car Radio Accessory Switched 12v+ Wire: N/A
Car Radio Ground Wire: N/A
Car Radio Illumination Wire: N/A
Car Stereo Dimmer Wire: Orange .,.,., looks like the orange is yours..
Car Stereo Antenna Trigger Wire: N/A
Car Stereo Amp Trigger Wire: N/A
Car Stereo Amplifier Location: N/A
Car Audio Front Speakers Size: N/A
Car Audio Front Speakers Location: N/A
Left Front Speaker Positive Wire (+): N/A
Left Front Speaker Negative Wire (-): N/A
Right Front Speaker Positive Wire (+): N/A
Right Front Speaker Negative Wire (-): N/A
Car Audio Rear Speakers Size: N/A
Car Audio Rear Speakers Location: N/A
Left Rear Speaker Positive Wire (+): N/A
Left Rear Speaker Negative Wire (-): N/A
Right Rear Speaker Positive Wire (+): N/A
Right Rear Speaker Negative Wire (-): N/A

 

is that the metra wiring diagram? and you have the pioneer 4300 deck or a different one that isnt working right?

 

thats the wiring for your car.. below...

i had this problem on a 4100 and a 4200.. on a 2006 Z.. i am assuming it will be the same on yours.. the most annoying thing was when u turn your headlights on and off.. the deck jumps uncontrollable bright levels.. or goes dim.. so i just disconnected the dimmer wire..
was just my 2 cents and history on the question

 

^ like he said i wouldnt even bother connecting it!

 

i left it unconnected.

does anyone else have a 08 350z with the pioneer 4300 installed? the metra dash kit doesnt sit flush, and the deck itself doesnt seem to come out at all, im thinking it has something to do with the brackets itself and not the metra kit. the kit fits around the deck just fine.