Disco 2 TD5 Landmark 2004 - hi-line system - aftermarket stereo rubbish radio reception

Hi, I've recently acquired a 2004 TD5 Landmark with the Hi-Line system, and the cassette head unit needed a code, so I yoinked it out, and put in an aftermarket noisemaker. I've got two problems with that unit, one is that it's only making noise out the front left door, the other is the utterly rubbish radio reception.

I am guessing I won't be the first person to ditch the stock radio, so I'm pretty sure someone on here will already have solved these problems. Now, for clarity, I've never heard this vehicle with the stock stereo running, so I don't know if the antenna amplifiers worked with the stock head unit or not. I'm wondering if there's something I need to do to power up the antenna amps? AFIK, they are both powered up by the red/blue wire on pin 5 of the grey connector, should I splice that to an ignition live?

Also worth noting is I only have the larger of the two antenna plugs connected, is there a handy adapter / splitter for linking both to the head unit. I've ordered this splitter:


So it's two antenna into one, but I need to find a small antenna to regular adapter, do we know of one?

Hopefully there's enough there that you can tell me how to get the signal strength up, what adapters / wiring I need to buy, and any other splicing I need to do to make the radio work. Then I can look at getting the other speakers working as a separate task.

I believe the Hi-Line installation contains a separate amplifier (maybe not so you can correct me), so the head unit is just a receiver of various inputs.
So have you removed/ isolated the amp or intending try using it (assuming its fully functional) with your new head unit and it’s compatible?? with the preamp outputs.
Its not all plug and play

With the diversity antenna arrangement and if your new head unit only has one antenna input then use the one thats giving the strong signal that will be FM.

may help

That diagram could be awesome, however it looks like the forum has scaled down the picture and the text labels are blurry - I'm going to PM you my email would you mind sending the file directly?

that the problem most of my images are around 3Mb and I'm unable to post them .the one's I post are re-sized and then further resized by the site in some cases view them in windows paint (as they are created in paint in PNG format as the colors don't bleed)

@mystery I got your email today, and I have to say your diagrams are exceptional, thank you very much. I've got access to hosting, so I could put the images on my webspace and link to them in this thread?

Jayridium said:

@mystery I got your email today, and I have to say your diagrams are exceptional, thank you very much. I've got access to hosting, so I could put the images on my webspace and link to them in this thread?

Click to expand...

Something for later may be useful to you Sir.
http://www.discovery2.co.uk/pdf_files/D2_electrical_library.pdf

I'm standing on the shoulders of giants here, but these are the exceptional Diagrams that @mystery made, where he's taken all three pages of the high-line stereo diagrams from the PDF and stitched them together in one diagram, doing away with things like this:


And frankly the diagrams were a nightmare to work with before, where following lines became a headache inducing multi page word search. But mystery has put a lot of work into gluing them together into something that is eminantly workable, and I am delighted to be able to host them on my company domain name's webspace.

Links
Stereo Diagram 1
Stereo Diagram 2
Fusebox and Power distribution diagrams

Mystery made these, and I can tell you from having started to do this myself, it's a lot of work he's put into these. I'm only providing webspace, please direct all likes and thanks to mystery.