Wrathernaut's Double-Din Installation FAQ, Shopping and Resource List
Joined: Nov 2008
Posts: 7,996
Likes: 1,050
From: Pennsylvania
So I am having some problems with my new install. I have a 05 g35 with Bose. I purchased a Jensen VM9225BT unit and a PAC ROEM NIS2 (no steering wheel hookup).
I followed the wiring diagram on the first page and hooked it up. The unit powers on but no sound. I hooked up the original to verify the speakers still worked and they did.
Not sure why the new HU doesnt produce sound (radio, cd or iphone)??
Any help appreciated!!!
I followed the wiring diagram on the first page and hooked it up. The unit powers on but no sound. I hooked up the original to verify the speakers still worked and they did.
Not sure why the new HU doesnt produce sound (radio, cd or iphone)??
Any help appreciated!!!
Registered User
Joined: Feb 2013
Posts: 15
Likes: 2
From: Houston, TX
Perhaps the Jensen isn't sending the amp turn-on signal or is just faulty. Check for a signal from the headunit - the amp power signal should be an easy check for +12v with a multimeter, the audio signal can be checked for similarly, but won't be a nice constant +12v signal to search for.
Joined: Nov 2008
Posts: 7,996
Likes: 1,050
From: Pennsylvania
Just tested my connections. I tested all 8 audio lines with positive lead inside of plastic connector and black grounded to metal of car and got ~6V on everyone of them on the HU side. On the car side (in between car and PAC) those same lines were a range of .15V to .8V. The yellow and red lines were 12V on both sides of pac
Registered User
Joined: Feb 2013
Posts: 15
Likes: 2
From: Houston, TX
Here is the wire diagram for my HU. The solid blue line is connected to the red ACC line and reads 12V. I do not have the blue/white wire hooked up at all.
http://www.voxxintlcorp.com/docs/com...M9225BT_IM.pdf
http://www.voxxintlcorp.com/docs/com...M9225BT_IM.pdf
Registered User
Joined: Feb 2013
Posts: 15
Likes: 2
From: Houston, TX
Here is the wire diagram for my HU. The solid blue line is connected to the red ACC line and reads 12V. I do not have the blue/white wire hooked up at all.
http://www.voxxintlcorp.com/docs/com...M9225BT_IM.pdf
http://www.voxxintlcorp.com/docs/com...M9225BT_IM.pdf
Registered User
Joined: Feb 2013
Posts: 15
Likes: 2
From: Houston, TX
Sending photo in a few min. I hooked up the blue/white wire on the HU to the PAC. It is reading 0 then .038 repeating (0 for 1 sec then .038 for a sec etc). The yellow and red are still reading 12v I also turned the little screws in the PAC all the way to the right and now on the PAC to amp side the readings vary from .5 to 1.5 for the speakers.
Registered User
Joined: Feb 2013
Posts: 15
Likes: 2
From: Houston, TX
In this pic the multi colored plug spot I only hooked up the blue/white wire
This pic the bundle I am holding is the speaker wires. You can see the solid blue and red from HU hooked to red of PAC. And the wires hangin down next to seat are all wires from the multicolored plug mentioned above.
Btw no sound still obviously
This pic the bundle I am holding is the speaker wires. You can see the solid blue and red from HU hooked to red of PAC. And the wires hangin down next to seat are all wires from the multicolored plug mentioned above.
Btw no sound still obviously
Last edited by malcocw; Mar 4, 2013 at 07:34 PM.
Joined: Nov 2008
Posts: 7,996
Likes: 1,050
From: Pennsylvania
Ok, here's one problem:
You've got the radio's blue wire connected to the combined red wires, instead of the ROEM's blue wire connected to the combined red wires. Review the wiring diagram, which shows the ROEM's blue wire connected to the red wires.
I'm going to try and find the manual to the radio to confirm some of the colors.
You've got the radio's blue wire connected to the combined red wires, instead of the ROEM's blue wire connected to the combined red wires. Review the wiring diagram, which shows the ROEM's blue wire connected to the red wires.
I'm going to try and find the manual to the radio to confirm some of the colors.
Last edited by Wrathernaut; Mar 4, 2013 at 09:35 PM.
Registered User
Joined: Feb 2013
Posts: 15
Likes: 2
From: Houston, TX
I'm a little confused. Are you saying that the white plugs from the PAC (came with original package from PAC) don't plug into the car and that the ends that were unattached to anything on the PAC don't attach to the Head unit?
Joined: Nov 2008
Posts: 7,996
Likes: 1,050
From: Pennsylvania
If that doesn't cause a +12v signal to go out on the blue/white wire, just connect the blue/white wire on the vehicle side of the ROEM up to the red wire on the vehicle side of the ROEM.