after market radio: no sound and no NBS relay installed ?
Hi Guys,
Yesterday I installed an aftermarket radio in my 2005 grand voyager limited 2.8CRD. Purchased all the required (iso & antenna) connectors and everything seems to work fine except of course: no sound..... I scanned this forum for possible solutions and was planning to connect a wire from the radio directly to the NBS relay as suggested in a post on this forum and this Youtube post: I opened the fuse box to discover that there is no NBS relay installed ? But the original factory unit worked OK without relay installed, but aftermarket unit produces no sound. :confused: Does this mean there is no amp installed ? How can I fix this ? can I use any of the other relays to test this solution ? My factory unit is a P05091610AC radio/cd. The only pin in the cars connector not connected at this moment is the one marked J1850 (nr 24) Thanks. |
Don't think the NBS relay is applicable to the 2,8's sound system.
The factory system outputs just 2 channels (L+R) which go to the amplifier. The amplifier is controlled by a data signal along the PCI bus from the head unit. The amplifier then distributes the L+R signal to all 6 speakers. When I replaced my, I ran two extra cables from the new head unit and connected them to the rear speakers and used the existing L+R to feed the front speakers. I just removed the amp, cut the connectors off and joined the speaker wires directly. The circuit diagrams can be found here https://drive.google.com/folderview?...0k&usp=sharing Regards Richard |
Fixed !
Hi Richard,
Just like you said. With two extra cables it is fixed. I had eight speakers though but did not connect the tweeters in the D panel. Thanks a lot ! Amplifier for sale :) |
Keep the factory radio under the seat and connect four wires. power / aux power / ground and PCI. When you use the car amplifier will be turned on by factory radio and sound will be play by new radio :)
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I'm using this system becasue of I want to use factory 8 channel infinity amplifier.
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