Hello Charlie The image shows just 4 light weight connections + - In & Out. If not connected to existing Sargent wiring, which feeds should be used.
The drain across the permanent feed fuse in the fuse box is 195ma, it turns out that 10ma is what is supposed to be the memory feed and 185ma, (unit switched off), is a drain on what should be the ignition feed through the radio. As there is no auxiliary key position or override on the radio, (like some more modern systems), the standard procedure was to cut the ignition feed into the radio and join the feed into the radio to the permanent memory feed; That way allowing the radio to be used when parked up. Never a very satisfactory way of wiring a radio in, ok with none memory push button radio systems or if the set didn't draw power when turned off, apart from minor memory (10ma) as you correctly stated. Unfortunately mine does draw this 185ma.
The drain across the permanent feed fuse in the fuse box is 195ma, it turns out that 10ma is what is supposed to be the memory feed and 185ma, (unit switched off), is a drain on what should be the ignition feed through the radio. As there is no auxiliary key position or override on the radio, (like some more modern systems), the standard procedure was to cut the ignition feed into the radio and join the feed into the radio to the permanent memory feed; That way allowing the radio to be used when parked up. Never a very satisfactory way of wiring a radio in, ok with none memory push button radio systems or if the set didn't draw power when turned off, apart from minor memory (10ma) as you correctly stated. Unfortunately mine does draw this 185ma.
Incidentally it also turned out that the feeds in the Fiat wiring loom were reversed according to the German Radio Manufacture's ISO wiring layout, they point this out in their manual that some Manufacture's reverse the wire the radio plugs.
So looking at the issue again:idea-007: I will fit a delay timer relay with a trigger switch, the radio is now wired up to ignition only. When set up with timer in standby mode the timer draws 20ma, in working mode its 50ma, the timer I have ordered is adjustable but will be set for about 4hrs. After that time it will drop back to the 20ma and cut the radio out. Working it through the battery monitor system would have drawn more power, the 185ma down to the set voltage, hours and hours, then 50ma to operate the cut off relay and monitor power till the battery was flat. So on the radio side in stand by mode, I will in effect go from 195ma down to 30ma, that will make me
I had no intention of cutting everything off, I was just making the point that there are many other types of drains upon the batteries. At the moment I can't check it at the battery as the front of MH is against a wall and the back just fits in the drive, I will do that another time to see what the other items are drawing, I hope not to much.
:have fun:
I think it is more likely that the German Standard is the one the wrong way round As when installing any aftermaket radios , if you are installing into a German vehicle with ISO plugs you have to swap over the red (ignition +12V) and yellow (perm +12V) wires, but on any others it is still red-red and yellow-yellow (these are the radio industry standard colours)
ref the Radio, I had a feeling that the signal/ignition +12V into the radio was wired to the permenant +12V. And with newer radios, the "Off" button on the radio does not actually turn the radio fully off in most cases, so there is a much larger drain then there should be.
This is a common issue with aftermarket radio installations on newer vehicles. See this a lot in the VW Transporter world where the standard radio is a Canbus connected unit via the new-style Quadlock connector found on newer vehicle, and the Quadlock connector has no ignition feed signal, so often DIY (and 'professional' for that matter) just connect the radios ignition +12V to the permanent +12V as it is easy to do.
I actually have a wiring kit especially for VWs (and other VAG vehicles) that deal with this, and also what I call a "Drive/Camping Radio Loom" kit which allows you to use a 3-way switch to feed the radio ignition with the Ignition signal (the "Drive" mode), or from a permanent +12V signal (the "Camping" mode), or just off (handy if you want to turn your ignition on late at night/early morning on a campsite and don't want to blast the neighbours).
Interesting comment about the Fiats wiring being reversed according to the Germans
Like wot he says
Sargent EC 480 & ec500. I do have a 2k inverter fitted directly to the lbatts which wouldn't go through the meter.
If you PM me an address I will send you a PDF (I can't recall where I got it from on line so easier to send the file then search for the link)