So here's another Ta daaa moment for y'all:
Aerocatches now fitted! Bit of a struggle but not too bad, probs 8 hours work!
The fronts are simply mounted through slam panel but rears are mounted here:
Ingenious!
Also tonight I finally got round to making my split charge system work more sensibly!
I realised today that my car being a 200 is very simply wired, power goes direct to the starter, then from the starter to a bulkhead fitting, where it meets the big wire from the alternator and then goes inside to the one and only fuse board.
I had been wanting to separate my auxiliary circuits for ages but it is a faff. I realised that all I have to do is disconnect the big wire in between the bulkhead fitting and the starter and make up a longer one to go to my second battery (I took it to the spilt charge relay actually cos its closer)
The principle now is that only the starter is connected to that primary battery. In fact it is no longer a primary battery, it is a starter battery.
The downside is that if I drain the 'main' battery completely (which is also connected to the winch) then I won't have enough power to even engage the starter solenoid.
It is however unlikely that I would drain the battery so flat that there would be no ignition or anything.
If this were to happen all I have to do is connect a crocodile clip or a pair of pliers across the split charge relay to give enough current to power the starter solenoid, the ecu etc, and the fully charged starter battery then spins the engine over no trouble.
Much better than before where the starter current has to pass through the split charge wiring etc if you need to self jump start!
Here's a quick pic so you get the idea of the bulkhead fitting, you can see the wires coming and going:
Cheers