rangerovers.pub
The only place for a coil spring is up Zebedee's arse.
Member
Joined: Jan 03 2020
Posts: 6

Evening all,

(I did try a forum search first, but didn't find anything in the first couple of pages of results).

My car (2000 4.0L 'base spec) came to me with an aftermarket stereo - a Sony radio/ CD player. However while it plays OK in the front doors, there's no sound in the back.

In my internet wanderings about P38s I thought I'd seen something about the radio install not being as straightforward as unplugging one and swapping in another, but I can't find anything which outlines the basic issues or any options.

Can anyone point me in the direction of this sort of info?

(It probably isn't the most important thing I should be thinking about - but you've got to start somewhere!)

Ta

Donald

Member
Joined: Mar 14 2017
Posts: 347

I think it depends on the spec of what is already fitted. If you have the basic setup with no factory fitted amplifiers then I believe you can plug straight in. If you have factory fitted amplifiers (which I believe the majority were ordered with) then you need an adapter to go between the head unit speaker outputs and the vehicle loom. You can spend a bit of money on a ready made on in a neat little plastic box (which I have to admit I did) or make one yourself.
Others will no doubt be along shortly to guide you on this.

Member
avatar
Joined: Dec 30 2015
Posts: 4028

If you have the low line system, you'll have 6.5" woofers in all 4 doors with tweeters in the front. Tweeters have a capacitor on the back of them to block the low frequencies and are connected in parallel with the woofers. In this case the plug on the loom will be a standard DIN 8 way plug that will plug straight into the speaker socket on a standard head unit. The mid line system has the same as the low line system but adds midrange speakers in each door, still in parallel with the woofers and again has the 8 way plug. The High line system adds the steering wheel controls, amps in each door (so attenuators are needed to drop the speaker level output from a standard head unit down to a level suitable for the amps) and the sub in the LH side of the boot. The amps incorporate a crossover network so feed the woofer from one output and the midrange and tweeter from the other. The high line has a 10 way plug on the loom as it has the sub output as well as the 4 speaker outputs so won't fit into a standard head unit (which normally use separate phono sockets for a sub output).

So, if you have the low or mid line system, you can plug the speaker plug into a standard head unit and it will work fine (which is what I have). Originally my car only had the Low line install but I changed the door panels for ones with the midrange speakers so upgraded it to the mid line install. Unless whoever installed yours has been playing with the wiring, which they shouldn't need to do, then all 4 channels should work fine. However, the woofers do have a habit of seizing meaning they can't move so even if it has been wired correctly, you'll get no noise. In which case, see the upgrades thread and get yourself a pair of JBL Stage 600CE speakers for the front and put the existing front ones in the rear.

Member
Joined: Jan 03 2020
Posts: 6

Thanks very much guys. After posting the first message I had a further google and became quickly more confused (and discouraged..). However what's here is more straightforward.

I never thought to mention the lack of steering wheel controls and, as far as I can tell, no mid-range speakers in the door cards. Which does suggest a 'low line' system. I'm completely fine with that to be honest, especially if it makes installing or working on it more straightforward.

So, the back door speakers not working could be:
something wrong with the installation (haven't had a look yet - Defender still hogging the garage)
the speakers themselves being broken
or, a break in the loom somewhere between the radio and the rear speakers.

This gives me a good steer for when I get a chance to look at this.

Ta

Member
avatar
Joined: Dec 30 2015
Posts: 4028

Mid range speakers are pretty obvious, as they have their own cloth covered grille above the grille for the woofers. Speaker feeds also go via a multiway connector behind the LH kick panel although it would be a bit of a coincidence if only the feeds to the rear speakers had gone green and hairy and neither of the feeds to the fronts.