You asked for it so here it is.....the 'el cheapo' guide to glow plug overriding...
You will need everything mentioned in the 3rd post....you may also require a female spade connector to connect to the power source and to the relay.....
EDIT - Disconnect the batteries before doing anything!!!
The first thing I did was cut 2 pieces of 8 gauge wire.....I cut each piece about 3 feet long....I then crimped on the large ring terminals to each end of the two pieces of wire.....I then attached one wire to each terminal of the solenoid...I also attached my inline fuse holder to a short piece of the 16 gauge wire by soldering it and covering it with liquid electrical tape...
Here is a pic of the progress thus far...
The next step is to open the hood and find a place to mount the solenoid....I chose to locate it next to the baro sensor...
I used an exacto knife to cut out some of the rubberized firewall covering so that the solenoid could be attached right to the firewall....I know....it was an ugly cut.....-20* celsius hardens this stuff up....
I then set my solenoid against the firewall and drilled two mounting holes...
The next step is to go ahead and use some self tapping screws (and washers if necessary) to attach the solenoid to the firewall....
Next, I attached the ends of the 8 gauge wires coming off of the solenoid to either side of the glow plug relay located behind the fuel filter...
Here is a picture of how the 8 gauge wires get hooked up...
I then replaced the 'boots' on top of the GP controller....
The next step is to take off the dash outer bezel....it is removed by taking out the 4 torx screws in the corners....
Next I ran the 16 gauge wire (green) through the firewall to the solenoid....the other end of this wire will come out of the dash and connect to the switch....
I then ran another chunk of 16 gauge wire (the one with the fuse holder) from a terminal on the power source block under the dash just behind the emergency brake on the firewall (inside the truck) to the same place that my other wire ended....
The next step is to take the outer bezel and drill a hole in one of the 'bosses'.....I found the center of one of the bosses and drilled a hole for the switch...
In this pic you will see a hole drilled prior for my hi-idle switch...I duplicated this in the boss in the middle...
Here is a pic of the bezel with the new switch for the GP override installed...
Now all that is left is to go ahead and connect the two 16 gauge wires to the switch in the bezel (remember - one of the wires runs directly to the solenoid and the other wire has a fuse holder on it and it runs to a 12 volt power source in the power block)......
Here is a pic of the bezel installed back in the truck....
Now when the switch is turned 'on' the GPs are turned on and the GP light on the dashboard lights up as an indicator of the system working properly.....