Post by
canucklehead »
https://forums.nicoclub.com/canucklehead-u105683.html
Sun Sep 14, 2008 8:00 pm
well, now that this job is done, I can share some insight that will hopefully save someone else the hassles I had.
1)thanks for that pic MOD; it saved me from breaking stuff. To those like me that didn't know...the plastic trim screw covers only partially pop off, you don't pry them off all the way. they sort of hang loose with a plastic hinge, and then you remove them with the screw, as one piece.
2)WOW, I get so frustrated when I buy an item specific to my application and then the instructions are lacking. There is an adapter wiring harness available that splices from the after-market CD player (mine is JVC) to the adapter. Then the adapter plugs into the factory plugs. I soldered and shrink-tubed everything, so no worry about poor connections. But they leave out a few important points:
The Nissan plug is 2 parts, one is a 6 pin connector and the other is a 10 or 12 pin connector. The larger connector has a wire that lines up with the ground wire from the JVC. Well, it must not be ground to frame, because after I connected it, I had no power. I had to splice in a jumper after the 2 grounds were mated, and ground it to the chassis. SInce the plastic trim pieces were all out of the way, there was a good screw by the shifter that I put a ring connector on. I'm not sure if you can bypass the factory wire that mates up with the JVC ground wire. Maybe that would work too. Basically,I have all 3 connected= the JVC ground+the Nissan "ground" on the harness, and then a jumper to the actual chassis/frame.
Okay, so we got ground figured out. Then I had no rear speakers. This is where the wiring instructions that came with the adapter are useless. The 6 pin connector from Nissan has 6 wires, 4 of which are speakers. I'm pretty sure Nissan built in some kind of amp for the rear speakers only, to punch up the sound, a lot. Not sure of Nissan's wire colors, BUT...the adapter leaves a black wire and a blue and white striped wire disconnected. I thought the black wire was ANOTHER ground, but it seems to make no difference whether it's connected or not, so I left it disconnected.
IMPORTANT: The rear speakers will NOT WORK unless you connect that blue and white wire from the adapter to the same blue and white wire from the JVC. ALSO, the solid blue wire from the 12 pin connector also gets spliced into this connection so you can have your power antenna work. I think it acts like a power wire for the amp to the rear speakers, and also, power for the automatic antenna.
3)ANTENNA...MAKE SURE YOU BUY AN ADAPTER!! Nissan uses some proprietary antenna connection that only fits their stereo. I had to go back to the store and buy an adapter to plug the Nissan antenna into the adpater, then the adapter had a standard antenna wire to fit the JVC.
4)I also bought a special car stereo dash mount kit. NOT NEEDED!! Luckily, my JVC had the exact same holes that the factory stereo had used to get mounted on the mounting bracket. This was a relief, because I wanted to keep my tray and cup holder. I'm going to guess most after-market, japanese type stereos will have these same mounting holes. BONUS!!
Removing the factory stereo from the mounting bracket was tough. The Phillips heads beg to be stripped. I had to pound an impact driver onto those heads. I probably ruined an already broken factory stereo. Oh well, it was a useless POS anyways! Interestingly, all my factory components (speakers and cassette player) are Clarion.
I sure would like to disconnect that rear amp somehow and still have the rear speakers work..but not at the expense of investing time to run new wire to the JVC. As it is, the rears won't work unless you hook up the blue and white wire (not Nissan's color code). But the built in amp in the JVC + the rear amp is too much and it sounds distorted at medium volume, and you loose the fronts because the rears are so overpowering.