Went to fit my old stereo from my Range Rover in my zed today... plugged it into the aerial and the iso block and it wont turn on. I can hear the motor going when its plugged in but it will not power up. The fuse seems fine on the back of it. Any idea where I am going wrong? If I plug my old cd player back in it works straight away...

yes your partly right ..

 

it will amplifie the input signal but the Main output of amp its self is only 20>25watts all your doing is Over driving the Gain input with the Head units output ( original designed for 10>15watt input of the old style HU

Hence it seems like its louder than fronts but u will find it will Distort with very little effort .. and thats why u have to use your fader to Lower the volume to balance the audio out

 

and all so you run a high risk of damaging your Rear output channels of the head unit

 

Cheers Mark,

 

Although as I don't use my ZX very much, I'll take that chance!! The sound is fine for my needs - and the cost of a new head unit is peanuts TBH; especially as the one in my old red ZX did not go wrong... Plus there's always something newer and better that comes along every few years....:whistling:

 

You're both right. The original factory head units were intended for use with the rear amp (at least those cars that had them - and Series 6s don't. S3 did and S1 JDM - again, at least mine did but that's not to say they all did. We know how consistent Nissan was!). On my S3, I had the rear channels of my Sony head unit turned way down for exact same reasons Richard found.

 

But had I known this at the very beginning of 300ZX ownership, It would have saved an awful lot of headscratching and "wtf is this not working" and laying new rear wires and changing the connectors etc etc. I had a major fall out with at least one car audio supplier who couldn't get the rear speakers working and came up with all sorts of b*llshit about why not (thanks, Hendon Car Stereo).

So even if people do change their rear wiring and bypass the rear speaker at least they know why and if they are OCD "keep it like stock" like me, at least there is a way of getting the original rear speaker setup working. I'd even have kept the OEM headunit had there been one.

 

Yup - agreed Mike; and good see you online too mate. Hope all's well with you!!

 

Richard:cool3: